What is standard deviation of probability distribution


Complete the following:

1. Test scores are Normally Distributed with a mean of 65 and a Standard Deviation of 8. Calculate the z-score of a test score of 84

2. Solve the problem: Find the area under the standard normal curve to the right of z = -1.25

3. Solve the problem: A car towing service company averages two calls per hour. Use the Poisson distribution to determine the probability that in a randomly selected hour the number of calls is six.

4. 0.32 of all college students like the idea of a new curriculum.
If we select 88 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 88) and the probability of each.

5. If the answer cannot be calculated, enter zero (0) as your answer. Round to 4 decimal places otherwise. YES, you need, therefore, to look at the 5th decimal place.0.32 of all college students like the idea of a new curriculum.

6. If we select 88 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 88) and the probability of each.

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Basic Statistics: What is standard deviation of probability distribution
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