Acommunications company has developed three new designs for a cell phone. to evaluate consumer response, a sample of n = 120 college students is selected and each student is given all three phones to use for one week. at the end of the week, the students must identify which of the three designs they prefer. the distribution of preference is as follows: design 1=54, design 2=38, design 3=28. do the results indicate any significant preferences among the three designs?

What is the upper quartile in the box plot?

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.

Aladder that is 20 ft. long against the side of a building. f the angle formed between the ladder and the ground is 75 degrees, how far is the bottom of the ladder from the base of the building?