Remaining Time: 46 minutes, 46 seconds. Question Completion Status: QUESTION 1 1 poir Four fair coins are tossed. Success is defined as getting a head. What is the probability that the toss will result in at least three heads? At least 3 means 3 or more No truncation or rounding of the answer please. QUESTION 2 1 poin Four fair coins are tossed. Success is defined as getting a head. What is the probability that the toss will result in either 0 or 4 heads? No truncation or rounding of the answer please. QUESTION 3 2 poin Calculate the variance and standard deviation of the following numbers: 45, 55, 60, 70, 105. Variance = and Standard Deviation = (If your answer has more than 2 digits after the decimal point, round to 2 digits after the decimal point - for example, for 34.785, enter 34 79 and for 43.521, enter 43.52) QUESTION 4 2 point Click Save and Submit to save and submit. Click Save All Answers to save all answers. Activate Wit Save All Answers S Type here to search O -7"C ClearRemaining Time: 46 minutes, 31 seconds. * Question Completion Status: QUESTION 4 Calculate the variance and standard deviation of the following numbers: 90, 90, 120, 150, 150. Variance = and Standard Deviation = (If your answer has more than 2 digits after the decimal point, round to 2 digits after the decimal point - for example, for 34.785, enter 34.79 and for 43.521, enter 43.52) QUESTION 5 Three coins are tossed. Success is defined as getting a head. What is the probability that the toss will result in one head? Round the result to 3 places after decimal. QUESTION 6 Three coins are tossed. Success is defined as getting a head. What is the probability that the toss will result in three heads? Round the result to 3 places after decimal. QUESTION 7 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Activate Save All Answers Type here to search O 9 -7"C Clear