Find z0.90
-1.28
1.28
0.8159
0.1841

Step-by-step explanation:

whaaat??

1.28

Step-by-step explanation:

bec. it is

its 4 because 2 times 2 is 4, if you double the number two you get four

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐