Mathematics, 15.12.2019 00:31 abigailstolp
Select all the correct answers.
a supermarket is testing brands of microwave popcorn. for each brand, they recorded the percentage of corn kernels in a package that popped in the recommended cooking time. let a be the data set of percentages listed below.
a = {91, 94, 89, 93, 87, 92, 86, 87, 92, 91}
the supermarket then realized they missed a brand. when the new brand was cooked, only 74% of its kernels popped.
let b be the data set of percentages for all 11 packages, including the package where the least kernels popped.
select the statements that are true.
including the percentage for the package where the least kernels popped causes the spread of the data to decrease.
the mean of a is the same as the mean of b.
including the percentage for the package where the least kernels popped causes the center of the data to increase.
the median of a is the same as the median of b.
the standard deviation of b is greater than the standard deviation of a.
the interquartile range of a is the same as the interquartile range of b.
Answers: 1
Mathematics, 21.06.2019 21:30
(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.
Answers: 2
Mathematics, 21.06.2019 22:00
Which two undefined geometric terms always describe figures with no beginning or end?
Answers: 3
Select all the correct answers.
a supermarket is testing brands of microwave popcorn. for each...
a supermarket is testing brands of microwave popcorn. for each...
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