Are there any statisticians in the house? How do I compare proportions of boys to proportions of girls that are proficient in math using different sized data sets?

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Given that abcd is a rhombus, what is the value of x?

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?