Answer:
For every 1000 pairs sold, the manufacturer expect to replace 239 pairs for free.
Step-by-step explanation:
Given:
Mean (μ) = 2.2, Standard deviation(S.D) (σ) = 1.7 years and x = 1 (1 year)
Let's find the Z score.
Z = 
Now plug in the given values in the above formula, we get
Z = 
Now we have to use the z-score table.
The z-score for 0.71 is 0.2611
Since it z is negative, so we subtract 0.2611 from 0.5000
0.5000 - 0.2611 = 0.2389
Percentage = 0.2389 × 100 = 23.89%
To find replaces for 1000 pairs, we need to multiply 23.89% by 1000
= 
= 239
The cannot be in decimal, when we round off to the nearest whole, we get
239
Let u be the set of all words containing 7 letters(26 letters to the power 7)
Answer:
$71
Step-by-step explanation:
9 + 70 - 8 = 71
No se , lo siento , sin comentarios F F F F G
Answer:
cool
Step-by-step explanation:
do you need the fractions
1/7,2/7,3/7,4/7,5/7,6/7,1 or 7/7