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KIM [24]
2 years ago
11

Consider the probability that at least 93 out of 154 CDs will not be defective. Assume the probability that a given CD will not

be defective is 61%.
Approximate the probability using the normal distribution. Round your answer to four decimal places.
Mathematics
1 answer:
Yuki888 [10]2 years ago
7 0

Answer:

0.5962

Step-by-step explanation:

Given that :

p = 61% = 0.61

q = 1 - p = 1 - 0.61 = 0.39

n = 154 ; x = 93

Using the binomial probability formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

P(x>=93) = p(x=93)+p(x=94)+...+p(x=n)

P(x>= 93) = 0.59619

P(x>= 93) = 0.5962

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Marat540 [252]

Answer:

-1/12

Step-by-step explanation:

12x-3 = -4

12x= -1

x= -1/12

6 0
3 years ago
Pls help with this question I don't know the answer. Don't put wrong answers pls.
Lapatulllka [165]

Answer:

-2 I believe. because the 1st exponent would make it 9, and then you'd remove 2

Step-by-step explanation:

I hope this is correct and helpful, I tried my best! <3

7 0
2 years ago
Use the percent bar model to find the missing percent
Ne4ueva [31]

A percentage is a way to describe a part of a whole. The missing percent on the bar model is equal to 12.5%.

<h3>What are Percentages?</h3>

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

On the percent bar model, above the missing percentage, the fraction is given as 1/8.

Now, the given fraction 1/8 in the form of percentage can be written as,

1/8

= 1/8 × 100%

= 0.125 × 100%

= 12.5%

Hence, the missing percent on the bar model is equal to 12.5%.

Learn more about Percentages here:

brainly.com/question/6972121

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3 0
2 years ago
Need help homies, no steps needed
VashaNatasha [74]

Answer:

12 have a good day

Step-by-step explanation:

4 0
3 years ago
A baker recorded the number of batches of
azamat

Answer:

B. The lower extreme increased.

Step-by-step explanation:

From the original box and whisker plot, the lower extreme (minimum) is 5 ; The upper extreme, maximum is 15.

The number of batches baked on the eight day is 20. This exceeds tbe previous maximum value. Hence, upper extreme( maximum) value of the new plot will change from 15 to 20.

The lower extreme isn't affected as the obtained value isn't below 5.

The median value will Increase and the upper quartile value will also increase. Once the upper quartile value increases, the interquartile range will also increase

6 0
3 years ago
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