A test has 20 true/false questions. What is the probability that a student passes the test if they guess the answers? Passing means that the student needs to get 15 questions correct. (Hint: you must determine the probability of success; look at the number of choices of answers the student will select from) The probability that the student will get 15 correct questions in this test by guessing is

Analyze the data sets below. data set a 25,25,25,26,26,26,27,28,28,29,30,31 ,31,32,33,33,34,35,35,35 data set b 25,25,25,26,26,26,26,27,27,27,27,28 ,28,29,29,30,31,31,32,34 which of the following statement are true? select all that apply. a. data set a is relatively symmetric and data set b is skewed left. b. the means of the data sets are within 3 units from eachother. c. the data sets have the same standard deviation. d. the mean of data set a is 27.95 and the mean of data set b is 30. e. the data set b has a higher standard deviation than data set a. f. the mean and median of data set a are close in value.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me