Mathematics, 08.04.2020 01:44, silverns
A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49 randomly chosen locations along a water line. Suppose that the lead levels across all the locations on this line are strongly skewed to the right with a mean of 17 and a standard deviation of 14 Assume that the measurements in the sample are independent. What is the probability that the mean lead level from the sample of 49 measurements x-bar is less than 15
Answers: 3
Mathematics, 21.06.2019 17:40, skylerdemi1
A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2
Answers: 2
Mathematics, 21.06.2019 19:00, adrianwoods1507
1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?
Answers: 2
A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49...
SAT, 21.04.2020 19:26
Mathematics, 21.04.2020 19:26