Mathematics, 10.02.2020 22:42 xxaurorabluexx
The true sample mean and sample standard deviation of the data are 67.8 and 18.8, respectively, rounded to one decimal place. Explain why the grouped-data formulas generally yield only approximations to the sample mean and sample standard deviation for non-single-value grouping.
Choose the correct answer below:
A. It is the result of counting data values more than once for grouped data and only once for non-grouped data.
B. It is the result of intermediate round off error in the calculations for grouped data.
C. It is the result of counting data values only once for grouped data and more than once for non-grouped data.
D. It is the result of using a class mark or midpoint to approximate data values rather than using the raw data.
Answers: 2
Mathematics, 21.06.2019 12:30
Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coop?
Answers: 2
Mathematics, 21.06.2019 19:00
Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)
Answers: 2
Mathematics, 21.06.2019 19:30
If chord ab is congruent to chord cd, then what must be true about ef and eg?
Answers: 1
The true sample mean and sample standard deviation of the data are 67.8 and 18.8, respectively, roun...
Biology, 06.09.2019 04:10
Computers and Technology, 06.09.2019 04:20
History, 06.09.2019 04:20
Computers and Technology, 06.09.2019 04:20
Mathematics, 06.09.2019 04:20