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Statistics

09/24/22

population proportion

Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 128 with 24% successes. Enter your answer as an open-interval (i.e.,... more

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Statistics

09/24/22

Compute SS variance and standard deviation for the following population. Scores: 1,3,9,3

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Statistics Computer Programming

09/23/22

How can i pay for the lesson i had from Steve P.

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Statistics

09/23/22

Statistic probability distribution

A baseball player has a batting average of 0.335. what is the probability that he has exactly 4 hits in his next 7 at bats? Round answer to four decimal places.

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Statistics

09/23/22

I need help finding the answers

A standard deck of cards contains 52 cards. One card is selected from the deck. (A) compute the probability of randomly selecting a four or a ten. (B) compute the probability of the randomly... more

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Statistics Probability

09/23/22

Diane is putting 12 colored light bulbs into a string of lights. There are 3 vellow light bulbs, 6 blue light bulbs, and 3 orange light bulbs. How many distinct orders of light bulbs are there if... more

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Statistics Probability

09/23/22

Probability and statistics

(a) There are 17 appetizers avallable at a restaurant. From these, Torn is to choose 13 for his party.How many groups of 13 appetizers are possible?(b) A certain committee consists of 18 people.... more

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Statistics Probability

09/23/22

Probability and statistics

A survey found that 37% of people earning between $30,000 and $75,000 said that they were very happy. If 5 people are selected at randorn, find the probability that at most 1 person who earns... more

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Statistics

09/23/22

Stat question 9

The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 35 liters, and standard deviation of 2.1 liters.A) What is the probability that daily production... more

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Statistics

09/23/22

Stat question 8

A particular fruit's weights are normally distributed, with a mean of 284 grams and a standard deviation of 32 grams.The heaviest 13% of fruits weigh more than how many grams?

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Statistics

09/23/22

Stat question 7

A particular fruit's weights are normally distributed, with a mean of 287 grams and a standard deviation of 17 grams.If you pick one fruit at random, what is the probability that it will weigh... more

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Statistics

09/23/22

Stat question 6

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.2 years, and standard deviation of 1.6 years.If you randomly purchase one item, what is the probability... more

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Statistics

09/23/22

Stat question 5

The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is more... more

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Statistics

09/23/22

Stat question 4

About what percentage of the area under the curve of the standard normal distribution is outside the interval z=[−2.96,2.96]z=[-2.96,2.96] (or beyond 2.96 standard deviations of the mean).

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Statistics

09/23/22

Stat question 3

About what percentage of the area under the curve of the standard normal distribution is between z=−1.655z=-1.655 and z=1.655z=1.655 (or within 1.655 standard deviations of the mean).

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Statistics

09/23/22

Stat question 2

For a standard normal distribution, find:P(z > c) = 0.1374Find c rounded to two decimal places.

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Statistics

09/22/22

Introduction to Statistics 5.4

The mean percent of childhood asthma prevalence in 43 cities is 2.15%. A random sample of 34 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the... more

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Statistics

09/20/22

Need help with statistics

if the mean of 100 and a standard deviation of 15 approximately what percentage of individuals have IQ scores between 55 and 85

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Statistics

09/20/22

Suppose that E and F are two events and that N(E and F)=250 and N(E)=430. What is P(F|E)?

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Statistics

09/20/22

Find the z-score of a man who is 71.9 inches tall.

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 71.9 inches tall. (Round answer to 2 decimal places)

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Statistics

09/20/22

Approximately what fraction of infants would you expect to have birth weights above 4430 g? (Express your answer as a decimal, not a percent, and round to three decimal places.)

Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano... more

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Statistics

09/20/22

Approximately what fraction of infants would you expect to have birth weights between 3210 g and 4430 g?

Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano... more

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Statistics

09/20/22

Compute the z-score of an infant who weighs 2875 g. (Round your answer to two decimal places.)

Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano... more

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Statistics

09/20/22

P(z < c) = 0.0037

For a standard normal distribution, find:P(z < c) = 0.0037Find c rounded to two decimal places.

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Statistics

09/20/22

What proportion of pregnancies last fewer than 262 days? P(X < 262 days)

The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days and a standard deviation of 16 days. A distribution of values is normal with a mean of 260 and a... more

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population proportion

Compute SS variance and standard deviation for the following population. Scores: 1,3,9,3

How can i pay for the lesson i had from Steve P.

Statistic probability distribution

I need help finding the answers

Probability and statistics

Probability and statistics

Probability and statistics

Stat question 9

Stat question 8

Stat question 7

Stat question 6

Stat question 5

Stat question 4

Stat question 3

Stat question 2

Introduction to Statistics 5.4

Need help with statistics

Suppose that E and F are two events and that N(E and F)=250 and N(E)=430. What is P(F|E)​?

Find the z-score of a man who is 71.9 inches tall.

Approximately what fraction of infants would you expect to have birth weights above 4430 g? (Express your answer as a decimal, not a percent, and round to three decimal places.)

Approximately what fraction of infants would you expect to have birth weights between 3210 g and 4430 g?

Compute the z-score of an infant who weighs 2875 g. (Round your answer to two decimal places.)

P(z < c) = 0.0037

What proportion of pregnancies last fewer than 262 days? P(X < 262 days)

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Suppose that E and F are two events and that N(E and F)=250 and N(E)=430. What is P(F|E)?