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Determining the z-score using the mean and standard deviation.

A wildlife biologist captures geese and weighs them. He determines that the weights are normally distributed with a mean of 9 pounds and a standard deviation of 1.3 pounds. What is the z-score of a goose which weighs 7 pounds? Round the answer to 2 decimal places using the standard normal table.

Subject:

Statistics

Topic:

All Topics

Posting ID:

1503

OTA ID:

101438

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Using a probability distribution table to determine the standard deviation. Attachment in Word.

Consider the following distribution: x P(=x) 40 .15 50 .30 70 .40 80 .15 What is the standard deviation of X? a) 7.81 b) 13.08 c) 13.75 d) 61 e) 171 f) 189

Subject:

Statistics

Topic:

All Topics

Posting ID:

1504

OTA ID:

101366

View Details $1.99 Download Add to Cart

Determining the probability using mean and standard deviation.

A wildlife biologist captures geese and weighs them. He determines that the weights of the geese are normally distributed with a mean of 9 pounds and a standard deviation of 1.3 pounds. What is the probability that a goose captured at random will weigh less than 10.5 pounds?

Subject:

Statistics

Topic:

All Topics

Posting ID:

1506

OTA ID:

101438

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Understanding the binomial probability coefficient and factorial notation.

What is a binomial coefficient and factorial notation?

Subject:

Statistics

Topic:

All Topics

Posting ID:

1507

OTA ID:

101366

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Working with linear transformations.

Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has mean 75 and standard deviation 10 when given to third graders. Sixth graders have a mean score of 82 and a standard deviation of 11 on the same test. To provide separate norms for each grade, we want scores in each grade to have a mean of 100 and a standard deviation of 20. What linear transformation will change sixth grade scores x into new scores xnew= a+bx that have the desired mean and standard deviation? (Use b>0 to preserve the order of the scores.)

Subject:

Statistics

Topic:

All Topics

Posting ID:

1646

OTA ID:

102524

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