Answer: Your question is poorly written, the Normal Curve is missing attached is a free sketch of normal distribution curve
answer : attached below
Step-by-step explanation:
Given data :
Mean = 80
standard deviation = 10
for a Normal distribution curve to the right of the mean value is ; +10SD , +20SD, +30SD........ +250D while to the left is -10SD , -20SD, -30SD....... -350D
Answer: 60480
Step-by-step explanation:
Given : The number of empty seats in a theater = 9
The number of customers need to find places to sit =6
Since order matters here, so we use permutations
The permutations of n things taking r at a time is given by :-
Then, the number of ways to arrange 6 seat in 9 seats :-
Hence, the number of ways to arrange 6 seat in 9 seats = 60480