brettswain1342
16.07.2021 •
Mathematics
A particular brand of dishwasher soap is sold in three sizes: 30 oz, 40 oz, and 70 oz. Twenty percent of all purchasers select a 30-oz box, 50% select a 40-oz box, and the remaining 30% choose a 70-oz box. Let X1 and X2 denote the package sizes selected by two independently selected purchasers.a) Determine the sampling distribution of X. Calculate E(X). b) Determine the sampling distribution of the sample variance S2. Calculate E(S2).
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Ответ:
She would multiply the rate by the years to find the average rise in water levels, or 1.8 times 6.2 = 11.16. To find the difference between the water levels, she would subtract -13.64 from 11.16.
Step-by-step explanation: