Answer:
=37
_
3
Step-by-step explanation:
Answer:
The chance of getting exactly 3 hits is = 0.20
Step-by-step explanation:
P.S - The exact question is -
As given,
F(x) = 0 , x < 1
0.30 , 1 ≤ x < 2
0.56 , 2 ≤ x < 3
0.76 , 3 ≤ x < 4
0.9 , 4 ≤ x < 5
1 , 5 ≤ x
Now,
f(x) = 0.30 , x = 1
0.56 - 0.30 = 0.26 , x = 2
0.76 - 0.56 = 0.20 , x=3
0.9 - 0.76 = 0.14 , x = 4
1 - 0.9 = 0.1 , x = 5
0, otherwise
Now,
The chance of getting exactly 3 hits is = f(x = 3) = 0.20
25% of $56 is $14.00.
(0.25)(56) = 14
Subtract $14.00 from $56 = $42.00.
56 - 14 = 42
The boots will cost $42 on sale.
Answer: 10
25% of 80 is 20 ( 80 x .25 = 20)
20 / 2 = 10