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Statistics

09/11/22

Statistics homework

Common stock distributed between $20 & $40 what is probability stock price will be more than $33

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Statistics

09/10/22

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 75 people in the 18-21 age bracket and finds that 64 of them respond and 11... more

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Statistics

09/10/22

Math question about stat

Suppose a jar contains 8 red marbles and 12 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.

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Statistics Math Computer Science Probability

09/10/22

Applied Probability & Information Theory - Joint Entropies

A child’s toy contains two windows in each of which a clown’s face appears when a button is pressed. The clown may be either smiling or crying. The design is such that the probability of each... more

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Statistics

09/10/22

Statistics math

Adult men have heights with a mean of 69. 0 inches and a standard deviation of 2.8 inches find the Z score of a man who is 60. 1 inches tall

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Statistics Computer Science Probability

09/10/22

Jensen’s Inequality & Strictly convex functions

Using the Jensen’s Inequality to show that f(x) = x 2 is strictly convex function.

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Statistics Probability

09/10/22

Probabilistic Independence

Explain what it is meant by two random variables X and Y are probabilistically independent.

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Statistics Math

09/10/22

A poker hand consisting of 4 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 3 face cards. Leave your answer as a reduced fraction.

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Statistics Math Probability

09/10/22

Lottery Probability Gains and Losses

The LotLot Lottery has a game called pick 4 numbers from 1 to 9, where player pays 50 pesos. If the 4 numbers come up in any order, then the player wins 6,300 pesos. Then the expected amount of... more

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Statistics

09/09/22

Discrete probability

7% of all Americans live in poverty. If 39 Americans are randomly selected, find the probability thata. Exactly 4 of them live in poverty. b. At most 1 of them live in poverty. c. At least 4 of... more

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Statistics

09/09/22

Discrete probability

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $9 each and will sell 900 tickets. There is one $2,000 grand prize, three $200 second prizes,... more

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Statistics

09/07/22

The following table presents the values of X and Y sets of observations:

X 12 15 16 17 14Y 110 124 134 139 124Use the information provided to compute Karl Pearson Correlation Coefficient and interpret the result.Compute the value of coefficient of determination and... more

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Statistics

09/07/22

A survey of 500 randomly selected customers based on their expenditure patterns was carried out and the data were found to be normally distributed

with a mean of N50 and a standard deviation of N15. Use the information to answer the following questions The probability that any customers are selected at random:a) spends more than N80... more

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Statistics

09/07/22

A certain standardized test's math scores have a bell-shaped distribution with a mean of 525 and a standard deviation of .119 Complete parts (a) through (c).

A certain standardized test's math scores have a bell-shaped distribution with a mean of 525 and a standard deviation of 119. Complete parts (a) through (c).Question content area bottomPart... more

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Statistics

09/07/22

The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.

The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.Driver Intoxicated Pedestrian IntoxicatedYes Yes No ... more

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Statistics Probability

09/06/22

If a green jelly bean is selected from the bag, what is the probability that the transferred jelly bean was green?

A box has 5 blue and 2 green jelly beans. A bag has 2 blue and 5 green jelly beans. A jelly bean is selected at random from the box and placed in the bag. Then a jelly bean is selected at random... more

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Statistics

09/06/22

how do I solve this?

Suppose we roll two dice, a red and a green one, and let X be the value on the red die and Y the value on the green die. Let Z=X/Y. Find E[(X+2Y)^2 |X,Z].

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Statistics

09/05/22

Two cards are drawn from regular deck of 52 cards. Without replacement. What is the probability that the first card is an ace of clubs and second is black?

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Statistics

09/03/22

How to find y bar and s. How to calculate an interval. How to find a percentage of scores in the data set that fall within the interval?

Sanitation inspection of cruise ships. Refer to theCenters for Disease Control and Prevention studyof sanitation levels for 169 international cruiseships, Exercise 1.23 (p. 18). (Recall that... more

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Statistics Math Logic

09/02/22

Probability Question

Bowl A=2 bb & 4 rbBowl B=8 bb & 4 rbBowl C=1 bb & 3 rbwe draw 1 ball from each bowl, what is the probability to draw a bb from bowlA if we know that we drew exactly a total of 2 bbbb=... more

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Statistics

09/01/22

Is about the assignment chapter 5 basic probability question 15

A ball is drawn randomly from a jar that contains 3 red balls, 5 white balls, and 7 yellow ball. Find the probability of the given event.(a) A red ball is drawn;The probability is : (b) A white... more

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Statistics

09/01/22

Statistics Help?

In real-life applications, statistics helps us analyze data to extract information about a population. In this module discussion, you will take on the role of Susan, a high school principal. She is... more

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Statistics

09/01/22

Math Question Stat

A pedestrian hit by the driver of an automobile at 25 mph has an 80% chance of surviving the collision. At 35 mph the change of being killed as a result of the collision is 80%. How many times more... more

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Statistics

08/31/22

Why is my overall correlation higher than the subgroup correlations?

I ran correlations for each grade on student test scores and the number of levels they completed on an interactive learning program. The correlations for the grades ranged from .5-.7, so why is the... more

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Statistics

08/30/22

An article in the Journal of Agricultural Science ["The

An article in the Journal of Agricultural Science ["The Use of Residual Maximum Likelihood to Model Grain Quality Characteristics of Wheat with Variety, Climatic and Nitrogen Fertilizer Effects"... more

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Statistics homework

Stat question for MAth

Math question about stat

Applied Probability & Information Theory - Joint Entropies

Statistics math

Jensen’s Inequality & Strictly convex functions

Probabilistic Independence

A poker hand consisting of 4 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 3 face cards. Leave your answer as a reduced fraction.

Lottery Probability Gains and Losses

Discrete probability

Discrete probability

The following table presents the values of X and Y sets of observations:

A survey of 500 randomly selected customers based on their expenditure patterns was carried out and the data were found to be normally distributed

A certain standardized​ test's math scores have a​ bell-shaped distribution with a mean of 525 and a standard deviation of .119 Complete parts​ (a) through​ (c).

The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.

If a green jelly bean is selected from the bag, what is the probability that the transferred jelly bean was green?

how do I solve this?

Two cards are drawn from regular deck of 52 cards. Without replacement. What is the probability that the first card is an ace of clubs and second is black?

How to find y bar and s. How to calculate an interval. How to find a percentage of scores in the data set that fall within the interval?

Probability Question

Is about the assignment chapter 5 basic probability question 15

Statistics Help?

Math Question Stat

Why is my overall correlation higher than the subgroup correlations?

An article in the Journal of Agricultural Science ["The

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A certain standardized test's math scores have a bell-shaped distribution with a mean of 525 and a standard deviation of .119 Complete parts (a) through (c).