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Statistics Math Discrete Math Probability

02/08/22

HELP NEEDED !!! DISCRETE MATHS

In the game of poker, a player receives a subset of 5 cards, called a poker hand, from the standard deck of 52 cards. The order in which the cards are received is not important, just the actual... more

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Statistics Math Discrete Math

02/08/22

Discrete Maths Help ASAP

In a standard deck of cards, there are 4 suits: clubs, diamonds, hearts, and spades. Each suit contains 13 cards: 2, 3,…,10, Jack, Queen, King, Ace. So there are 4 * 13=52 cards in the deck.A... more

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Statistics

02/08/22

Roy and Jennie are looking for a company to help plan their wedding.

Company A charges an amount based on the cost function, C=Vn + F, where C is total cost, V is variable cost, F is fixed cost, and n is the number of people who attend the wedding. Suppose n is a... more

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Statistics

02/08/22

Roy and Jennie are looking for a company to help plan their wedding.

Company A charges an amount based on the cost function, C=Vn + F, where C is total cost, V is variable cost, F is fixed cost, and n is the number of people who attend the wedding. Suppose n is a... more

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Statistics

02/08/22

A manufacturer produces items with a rectangular base. Let random variables denote the respective length(x) and width(y) of the rectangle (in cm).

Suppose x and y are independent with the following parameter values.E(x)= 2, Var(x)= 0.12, E(y)= 7, Var(y)= 0.34The perimeter is 2x + 2y. (Round to 4 decimal places if needed)a) What is the mean of... more

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Statistics

02/08/22

A lottery has a grand prize jackpot worth 80 million dollars. The chance of winning from purchasing a single ticket is 1 in 18900000.

a) What is the expected value of winning from a single ticket in dollars? (Round your answer to the nearest cent)b)Would it be worth to buy a ticket for 1 dollar? Yes/No

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Statistics

02/08/22

A survey was conducted from a large group of high school students in an effort to determine what science courses they were currently enrolled in. 68% in Chemistry, 65% in Physics, 47% in Biology.

Assume independence between the science classes that each student is enrolled in.(Round to 3 decimal places, if needed)a) What is the probability that a randomly selected student is enrolled in... more

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Statistics

02/08/22

One evening at a local restaurant, a manager decided to ask his patrons which meals they had cooked for themselves during the day, as opposed to eating out at a restaurant.

The manager found that 30% cooked breakfast, 20% cooked lunch, and 7% cooked both meals. (Round to 2 decimal places, if needed)a) What is the probability that a randomly selected patron cooked... more

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Statistics

02/08/22

A survey of 221 people in an introductory math course at the University of Alberta found that 173 people were under the age of 20, and 25 people were over the age of 30.

(Round all answers to 3 decimal places, if needed)a) What is the probability that a randomly selected person is either above the age of 30 or under the age of 20?b) What is the probability that a... more

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Statistics

02/08/22

Suppose that arrival times for an elevator in a large hotel are bell-shaped with a mean of 20 seconds and a standard deviation of 6 seconds.

What percent of time will the elevator arrive between 2 seconds and 8 seconds?

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Statistics

02/08/22

Suppose that last month, WestJet flights arrived on time 77% of the time and you were on 3 of those flights. (Round to 4 decimal places if needed)

a) Given that each flight is independent of one another, what is the probability that all of your flights arrived on time?b) What is the probability that none of your flights arrived on time?c)... more

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Statistics

02/07/22

IQ scores have an approximately bell-shaped distribution with mean 100 and standard deviation 15. Use the Empirical Rule to answer the following questions.

What percentage of IQ scores are above 130?What percentage of IQ scores are below 115?What percentage of IQ scores are between 70 and 85?

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Statistics

02/07/22

Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the height of a man with a z-score of 2.1071 (to 4 decimal places)

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Statistics

02/06/22

Statistics Questions

The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119 and standard deviation of 16 .Someone qualifies as having Stage 2 high blood pressure if their... more

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Statistics Biostatistics

02/06/22

A random sample of 390 married couples found that 290 had two or more personality preferences in common.

A random sample of 390 married couples found that 290 had two or more personality preferences in common. In another random sample of 558 married couples, it was found that only 38 had no... more

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Statistics Biostatistics

02/06/22

In a random sample of 530 judges, it was found that 287 were introverts.

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a random sample of 530 judges, it was found that 287 were... more

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Statistics

02/06/22

i dont get this

how to compute P(-1.22<t<1.22) with 14 degrees of freedom

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Statistics Probability

02/06/22

probability and statistics

1. Read the given data ‘TIPS.csv’ as a dataframe named Tips and answer the following question.a) In the tips dataframe, for the variable “total bill” what is the 3rd quartile and... more

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Statistics Probability

02/06/22

probability and statistics

1. There are 3 arrangements of the word DAD, namely DAD, ADD, and DDA. How many arrangements are there of the word ENDURINGLY? 2. There are 13 men and 12 women in a ballroom... more

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Statistics Differential Equations Probability

02/06/22

Equation help please

What is the equation here? 1 person is playing a game guessing a number and has odds of 1/256 so they get the right answer every 4minutes. What if 10 people are playing the same game independently?... more

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Statistics

02/05/22

sample variance

5-55-5-5145Calculate the value of the sample variance. Round your answer to one decimal place.

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Statistics

02/05/22

distribution and deviation

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.61 and a standard deviation of 0.45. Using the empirical rule, what... more

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Statistics

02/05/22

IQ scores and distribution

Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation of 14 . Using the empirical rule, what percentage of IQ scores are between 61 and 145?

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Statistics

02/05/22

standard deviation

Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given... more

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Statistics Graph Distribution

02/04/22

He gathers the following sample:13,15,13,16,14,20,15,20,21,14,17,18,19,12,14,18,,13 . appropriate graphical representation and describe the distribution of number of pieces of cereal on the floor.

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HELP NEEDED !!! DISCRETE MATHS

Discrete Maths Help ASAP

Roy and Jennie are looking for a company to help plan their wedding.

Roy and Jennie are looking for a company to help plan their wedding.

A manufacturer produces items with a rectangular base. Let random variables denote the respective length(x) and width(y) of the rectangle (in cm).

A lottery has a grand prize jackpot worth 80 million dollars. The chance of winning from purchasing a single ticket is 1 in 18900000.

A survey was conducted from a large group of high school students in an effort to determine what science courses they were currently enrolled in. 68% in Chemistry, 65% in Physics, 47% in Biology.

One evening at a local restaurant, a manager decided to ask his patrons which meals they had cooked for themselves during the day, as opposed to eating out at a restaurant.

A survey of 221 people in an introductory math course at the University of Alberta found that 173 people were under the age of 20, and 25 people were over the age of 30.

Suppose that arrival times for an elevator in a large hotel are bell-shaped with a mean of 20 seconds and a standard deviation of 6 seconds.

Suppose that last month, WestJet flights arrived on time 77% of the time and you were on 3 of those flights. (Round to 4 decimal places if needed)

IQ scores have an approximately bell-shaped distribution with mean 100 and standard deviation 15. Use the Empirical Rule to answer the following questions.

Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the height of a man with a z-score of 2.1071 (to 4 decimal places)

Statistics Questions

A random sample of 390 married couples found that 290 had two or more personality preferences in common.

In a random sample of 530 judges, it was found that 287 were introverts.

i dont get this

probability and statistics

probability and statistics

Equation help please

sample variance

distribution and deviation

IQ scores and distribution

standard deviation

He gathers the following sample:13,15,13,16,14,20,15,20,21,14,17,18,19,12,14,18,,13 . appropriate graphical representation and describe the distribution of number of pieces of cereal on the floor.

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