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algol [13]
2 years ago
5

The value given below is discrete. Use the continuity correction and describe the region of the normal distribution that corresp

onds to the indicated probability. Probability of fewer than 8 passengers who do not show up for a flight Choose the correct answer below. A. The area to the right of 8.5 B. The area between 7.5 and 8.5 C. The area to the right of 7.5 D. The area to the left of 7.5 E. The area to the left of 8.5
Mathematics
1 answer:
lions [1.4K]2 years ago
6 0

Answer:

D. The area to the left of 7.5

Step-by-step explanation:

If fewer than 8 passengers do not show up for a flight, then at most 7 passengers do not show up for a flight. Therefore, applying continuity correction, the area under the curve must comprehend from zero to seven passengers not showing up, but not the 8th passenger. Thus, the area must be to the left of 7.5.

The answer is D. The area to the left of 7.5.

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a car travels along the highway to yuma at steady speed. when it begins, it is 400 miles from yuma. After 7 hours, it is 59 mile
klemol [59]

Answer:

y= -50x + 400

Step-by-step explanation:

-50 miles from the place which means they are going further and further away so it is negative. And its 400 because y=mx+b the b is 400 because thats where they started.  Also it said it was correct on A-p-e-x.

4 0
3 years ago
What’s the common denominator for 3/7 and 1/2? Sorry but I don’t know
shepuryov [24]

Answer:

14

Step-by-step explanation:

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2 years ago
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mario62 [17]

Answer:

72

Step-by-step explanation:

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3 years ago
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babunello [35]
I'll help on 12. You know that 5*5 is 25. therefore what times 5 equals 20? 
3 0
3 years ago
In a survey, of the voters support a particular referendum. If 40 voters are chosen at random, find the mean and variance for th
Katyanochek1 [597]

This question is incomplete, the complete question is;

In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,

find the mean and variance for the number of voters who support the referendum.

Answer:

a) The Mean is 22

b) Variance is 9.9

Step-by-step explanation:

Given that;

55% of the voters support a particular referendum p = 0.55

q = 1 - p = 1 - 0.55 = 0.45

sample size n = 40

a)

Mean = sample size n × p

Mean = 40 × 0.55

Mean = 22

Therefore the Mean is 22

b)

Variance = n × p × q

so we substitute

Variance = 40 × 0.55 × 0.45

Variance = 9.9

Therefore the Variance is 9.9

3 0
3 years ago
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