of adults in the gym, the mode heart rate 16) Use the histogram below t Heart Ra
ID: 3324477 • Letter: O
Question
of adults in the gym, the mode heart rate 16) Use the histogram below t Heart Rates of Adults Heart rate (beats per minute) D) 70 A) 2 B) 55 C) 42 17) Sample annual salaries (in thousands of listed. Find the sample standard deviation. 20.6 23.0 30.4 38.1 12.1 10.0 for deviatioanolar) for public elementary school teachers are A) 10.71 D) 34.25 .u2.Compute B) 3001.61 C) 3575.54 18) You wish to test the claim that·24 at a level of significance of a statistics n- 35, -23.1. Assume the population standard of the standardized test statistic. Round the population standard deviation is 2.7.Compute the va A) -1.97 your answer to two decimal places. 19) The random variable x represents the number of cars per household i a to B)-3.12 C)-183 households. Find the probability of randomly selecting a household th one has at Cars Households 0 125 428 2256 108 83 3 A) 0.083 B) 0.500 C) 0.125 D) 0.875Explanation / Answer
19)
Total no of households = 125 + 428 +256 +108 +83 = 1000
P(cars = 0) = 125/1000 = 0.125
P(cars = 1) = 428/1000 = 0.428
P(cars = 2) = 256/1000 = 0.256
P(cars = 3) = 108/1000 = 0.108
P(cars = 4) = 83/1000 = 0.083
probability of randomly slelecting a household that has at least one car
= P(cars = 1)+P(cars = 2)+P(cars = 3)+P(cars = 4)
= 0.428+0.256+0.108+0.083 = 0.875 (D)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.