Statistics Fall Final Exam

Front

What is the probability of at least 2 out of 10 blood donors having Type B blood if 11% of the U.S. population has Type B blood?

Back

0.303

Front

What is the mean heart rate of 21 year old females at rest?

Back

68 bpm

Front

What is the standard deviation of heart rates for 21 year old females at rest?

Back

4 bpm

Front

If 200 women are tested, how many would have a heart rate less than 75 bpm?

Back

192

Front

What is the probability of drawing a red or brown marble from a jar with a total of 19 marbles, 5 of which are red or brown?

Back

5/19

Front

How many different ice cream combinations can be made with 6 flavors, 4 toppings, and 2 types of cones?

Back

48

Front

What is the probability that at least 5 out of 50 customers buy magazines if only 5% of customers buy them?

Back

0.104

Front

Define 'probability'.

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is a 'normal distribution'?

Back

A normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

Front

What does 'standard deviation' measure?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.