Question: 1. (6 points) State whether the shape of each distribution is symmetric, skewed left, skewed right, uniform, or bimodal. (a) (b) (c) Relative frequency 2P828

1. (6 points) State whether the shape of each distribution is symmetric, skewed left, skewed right, uniform, or bimodal. (a) (b) (c) Relative frequency 2P828 88 Frequency 2. (12 points) Suppose the distribution of test scores in a statistics class is unimodal and symmetric with mean 78 points and standard deviation 5.4 points. Use the Empirical Rule to answer the following. (a) What percentage of students had a score between 67.2 and 88.8? (b) What percentage of students scored less than 67.2 points? 3. (8 points) Suppose A and B are two events such that P(A) = 0.35, P(B) = 0.8, and P(A U B) = 0.6. Find P(An B)
Step by Step Solution
There are 3 Steps involved in it
1 Expert Approved Answer
Step: 1 Unlock
Question Has Been Solved by an Expert!
Get step-by-step solutions from verified subject matter experts
Step: 2 Unlock
Step: 3 Unlock
