8,918 Answered Questions for the topic statistics

Statistics Math

03/22/23

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1400 and the standard deviation is $145.
965 1110 1255 1400 1545 1690 1835What is the approximate percentage of buyers who paid between $965 and $1400?%What is the approximate percentage of buyers who paid between $1110 and $1400?%What is... more
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Statistics

03/22/23

Central Limit Theorem
Hi!I have all of the other parts of this question finished, but I am having trouble on this one.For the 39 cities, find the probability that the average amount of pollutants is less than 7.8... more
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Statistics

03/22/23

A high school baseball player has a 0.202 batting average. In one game, he gets 9 at bats. What is the probability he will get at least 5 hits in the game?
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Statistics

03/21/23

Find the P value

Homser Lake, Oregon, has an Atlantic salmon catch and release program that has been very successful. The average fisherman's catch has been 𝜇 = 5.7 Atlantic salmon per day. Suppose that a new quota... more
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Statistics

03/20/23

Statistics: Using the Binomial distribution,
Using the Binomial distribution,If n=8 and p=0.8, find P(r=7)
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Statistics

03/20/23

The following is a table of probabilties calculated from a survey of BHCC students with the question asked "How many classes are you taking this semester?
The following is a table of probabilties calculated from a survey of BHCC students with the question asked "How many classes are you taking this semester?" x: # of... more
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03/20/23

Use substitution tUse substitution to evaluate the indefinite integral ∫3x^2e^(2x3) dx.o evaluate the indefinite integral ∫3x^2e^(2x3) dx.
Use substitutioUse substitution to evaluate the indefinite integral ∫3x^2e^(2x3) dx.n to evaluate the indefinite integral ∫3x^2e^(2x3) dx.
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Statistics Probability

03/20/23

please help solve
The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 17 days.In what range would you expect to find the middle 98% of... more
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Statistics Probability

03/20/23

please help me solve this
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 177.9-cm and a standard deviation of 1.1-cm. For shipment, 18 steel rods are bundled... more
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Statistics Probability

03/20/23

please help me solve this
On the distant planet Cowabunga , the weights of cows have a normal distribution with a mean of 569 pounds and a standard deviation of 59 pounds. The cow transport truck holds 17 cows and can hold... more
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Statistics Math

03/20/23

Probability and Distribution
Suppose Z  follows the standard normal distribution. Use the calculator provided, or this table, to determine the value of c so that the following is true.= P(Z > c ) = 0.1170Round your answer... more
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Statistics Math

03/20/23

If n = 23, x ¯ = 30, and s = 15, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.

ANSWR TO THE RD DECIMAL PLACE
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Statistics Finance

03/20/23

Trying to understand how to calculate Arbitrage questions.

The following are quotes for Japanese (JPY) against the dollar (USD) for spot, 1 month forward, 3 months forward, 6 months forward and one year forward. All the rates are quoted as the number of... more
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Statistics

03/19/23

can someone help with these problems

An Arborist is interested in determining the mean diameter of mature white oak trees. The following data represent the diameter (in centimeters) 1 meter above the bases for a random sample of seven... more
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Statistics Probability

03/19/23

What is the probability that you encounter at least one luma during the 300 encounters while using a radar?
In the game Temtem there is a very small (1 out of 7500) chance that you will encounter a "luma" version of a creature. With a special radar item, you can increase these chances by encountering... more
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Statistics Math

03/19/23

If n = 23, x ¯ = 30, and s = 15, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.

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Statistics

03/18/23

Chance of success and how many repititions?
Hey, if something has a 11.6% chance of success and i need it to succeed 10,000 times how many extra repetitions would i need to achieve 10,000 results.
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Statistics Probability

03/17/23

Please help me solve this
The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 30 liters, and standard deviation of 7.1 liters.A) What is the probability that daily production... more
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Statistics Probability

03/17/23

Please help me solve this
A distribution of values is normal with a mean of 36.8 and a standard deviation of 61.6.Find the probability that a randomly selected value is greater than 203.1.P(X > 203.1) = Enter your answer... more
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Statistics Probability

03/17/23

Please help me solve this
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 174.7-cm and a standard deviation of 0.6-cm.Find the probability that the length of a randomly... more
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Statistics Probability

03/17/23

im begging pls help ive gotten this wrong too many times
The heights of adult men in America are normally distributed, with a mean of 69.2 inches and a standard deviation of 2.69 inches. The heights of adult women in America are also normally... more
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Statistics Probability

03/17/23

Please help me solve this
For a standard normal distribution, find:P(z < -0.62)Express the probability as a decimal rounded to 4 decimal places.
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Statistics Probability

03/17/23

Please help me solve this
For a standard normal distribution, find:P(z > -1.98)Express the probability as a decimal rounded to 4 decimal places.
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Statistics Probability

03/17/23

Helpppppp plsssss
For a standard normal distribution, find:P(-2.07 < z < -1.06)
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Statistics Probability

03/17/23

Please help me solve this
For a standard normal distribution, find:P(z > c) = 0.0135Find c rounded to two decimal places.
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