Aschool system is testing a new math teaching strategy for geometry. ten classes were randomly selected to pilot the new strategy, and 10 classes were randomly chosen to continue using the current strategy. at the end of the school year, more than 50% of the data overlapped. consequently, the school system could not make a determination about which teaching strategy produced higher test scores. what can the school system do to make the decision more definitive?

Step-by-step explanation:

increase the random sample size

answer: it's a

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column