70 - for 1 < x < 70 pounds. 69x² The probability density function of the weight of packages delivered by a post office is f(x) = a) Determine the mean and variance of weight. Mean = pounds (Round the answer to 2 decimal places.) Variance = pounds? (Round the answer to 1 decimal place.) b) If the shipping cost is $2.50 per pound, what is the average shipping cost of a package? $ i (Round the answer to 1 decimal place.) c) Determine the probability that the weight of a package exceeds 59 pounds.

K 7 The probability that a bachelor's degree recipient in 2014 majored in biology is 20 Set-up an equation to find the odds of the event occurring. P(E) P (E') 20 20 (Type whole numbers.) .. 6 The odds of a bachelor's degree recipient in 2014 majoring in biology occurring are (Type whole numbers.) Find the odds of the event occurring. to

x 44 55 66 77 88 P(X=x)P(X=x) 0.20.2 0.20.2 0.20.2 0.20.2 0.2 :  Find the variance. Round your answer to one decimal place.

please help

Quiz: Self-Check 3.2 This Question: 1 pt 5 of 8 (4 cor Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 3 4 Probability 0.662 0.212 0.083 0,022 0.013 0.008 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. 卫三 (Round to one decimal place as needed.) Find the variance of the probability distribution. (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. | (Round to one decimal place as needed.) (b) Interpret the results in the context of the real-life situation. Click to selecCt your answer(S). Video Tuterial How to Find Probablitie T1-84. =earch

parts c and d please needed ASAP thank you in advance.

z  score  area between -1.425 and 1.425 find out shaded area of given data and also find probability in percentage

d.Find the correlation coefficient between x and y. Show your calculations.e.Comment on the direction and the strength of the association between x  and yf. Find the mean value of (x– y) and the standard deviation of (x – y). Show your calculations.