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Black_prince [1.1K]
3 years ago
12

A CD drive produced by a certain company has a 1% chance of encountering disc-read errors. If it is tested for 200 read operatio

ns, what is your best estimate about how many times it will fail?
A. 0
B. 2
C. 3
D. 5
E. 10
Mathematics
2 answers:
Ede4ka [16]3 years ago
4 0
The number of times that the CD will fail is the product of the numbers it was tested and the percentage that it would fail. This is,
                                 (200 times) x (0.01) = 2
It is estimated that the CD will fail twice. The answer is letter B.
Ivan3 years ago
4 0

Answer: b is the answer which it is two


Step-by-step explanation:


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What is the slope between the points (5,-7) and (-7,1)?
SCORPION-xisa [38]
I hope this helps you



(5,-7) x'=5 y'= -7


(-7,1) x"= -7 y"=1


slope. (x'-x")=y'-y"


slope. (5-(-7))= -7-1


slope. 12= -8


slope =-8/12


slope = -2/3
6 0
3 years ago
(CO 4) In a sample of 15 stuffed animals, you find that they weigh an average of 8.56 ounces with a standard deviation of 0.09 o
Masja [62]

Answer:

92% Confidence Interval = [8.515, 8.605]

Step-by-step explanation:

The number of samples given is 15,this less than 30, hence, we use the t score confidence Interval

= Mean ± t score × Standard deviation/√n

Mean = 8.56 ounces

Standard deviation = 0.09 ounces

n = 15

We find the degrees of freedom = n - 1

= 15 - 1 = 14

Using the T score table

T score for 92% confidence interval with degrees of freedom 14

= 1.8875

Hence:

Confidence Interval =

= 8.56 ± 1.8875 × 0.09/√15

= 8.56 ± 0.0454010035

Confidence Interval

8.56 - 0.0454010035

= 8.5145989965

≈ 8.515

8.56 + 0.0454010035

= 8.6054010035

≈ 8.605

92% Confidence Interval = [8.515, 8.605]

7 0
2 years ago
40 points and brainly math problem easy!
Nat2105 [25]

Answer: the third one

Step-by-step explanation:

8 0
3 years ago
A. 2b + 8 - 5b + 3 = -13 + 8b – 5
MrRa [10]
Solution
-3b + 11 = -18 + 8b
-3b - 8b = -18 - 11
-11b = -29
b = 29/11
8 0
3 years ago
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Find the midpoint of the segment between the points (17,−11) and (−14,−16)
Viefleur [7K]

Answer:

(1.5, -13.5)

Step-by-step explanation:

Midpoint Formula: (\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )

Simply plug in our coordinates into the formula:

x = (17 - 14)/2

x = 3/2

y = (-11 - 16)/2

y = -27/2

4 0
3 years ago
Read 2 more answers
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