The probability of getting at least 1 defective hard disk among the 5 (P(X>0)) is equal to 100% minus the probability of getting none defectives (1-P(X=0)).

If 23 out of 25 hard disks are non-defective, the probability is:

$P(X>0) = 1 -P(X=0)\\P(X>0) = 1 -\frac{23}{25}*\frac{22}{24} *\frac{21}{23} *\frac{20}{22} *\frac{19}{21}\\ P(X>0) = 0.3667=36.67\%$

The probability that there is at least 1 defective hard disk is 0.3667 or 36.67%.

8 0

3 years ago

I need the answer quick before my timer goes out

max2010maxim [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Is this correct or need more? but still need help

lana [24]

8 ft= ___ inches
1 ft= 12 inches
8 ft= 12 x 8 inches
8 ft=96 inches
She has 96 inches, but she needs 100 inches. So she needs 4 more inches of lumber.

6 0

3 years ago

Read 2 more answers

Foster is centering a photo that is 7 / 1 2 inches wide on a scrapbook page that is 14 inches wide. How far from each side of th

Snowcat [4.5K]

36 inches long divide by 7 and 12

6 0

3 years ago