A group of 824 statistics students enrolled at a private 4-year university were asked to write down a random integer between 1 and 20. Very few people chose the number 1 (less than 1%.) The most common numbers were 7 (10%), 13 (11%), and 17 (13%.) How effective are students at generating random numbers

Since the frequency of the numbers vary, the students are not effective at generating random numbers.

Step-by-step explanation:

If they were effective, all the numbers should have around the same probability of being generated.

Between 1 and 20 there are 20 numbers, so the frequency of each number should be around 100%/20 = 5%.

Since the frequency of the numbers vary, the students are not effective at generating random numbers.

b

step-by-step explanation:

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.