3 years ago

P( total shown=3) rolling two fair number cubes

Mathematics

1 answer:

kondor19780726 [428]3 years ago

6 0

Dice have six sides. So 6 cubed would be 216. Does that sound right?

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(1 point) A random sample of 600 movie goers in Flagstaff found 252 movie goers who had bought popcorn on their last visit. Find

garik1379 [7]

<u>Answer-</u>

A 95% confidence interval for the true percent of movie goers is 36.41% to 44.25%

<u>Solution-</u>

Given,

n = 600 (sample size)

x = 252 (number of people who bought)

Confidence interval = 95%, so z = 1.96

We know that,

$\mu = M\pm Z(SE)$

where,

M = sample mean

Z = Z statistic determined by confidence level

SE = standard error of mean

Calculating the values,

$M=\frac{x}{n} =\frac{242}{600} =0.4033$

$Z=1.96$ from the tables

$SE=\sqrt{\frac{M\times (1-M)}{n}}$

$\Rightarrow SE=\sqrt{\frac{0.4033\times (1-0.4033)}{600}}=0.02$

Putting all the values in the formula,

$\mu = M\pm Z(SE)$

$\mu = 0.4033\pm 1.96(0.02)$

$=0.4033\pm 0.0392$

$=0.4425, 0.3641$

$= 44.25\%,36.41\%$

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3 years ago

a car covers a distance of 450 miles in one minute where is a train covers 69 km in 45 minutes find the ratio of their speed

liberstina [14]

Answer:

69 plus 45 mius 450 equals 98

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A right triangle ABC is shown below: The area of the triangle above will equal one-half of a rectangle that is 5 units long and

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Answer:

2 units wide. area=1/2 of 5 x 2. so, 5 x 2 is 10. whats half of ten? 5. the area of the triangle is 5

Step-by-step explanation:

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Suppose a bunny's second hop is 10% higher than her first hop. classify the statement below as true or false, correct it.

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The answer is a because the original is 100% of their jump. Then you would add the extra 10% so it would equal 110%

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2 years ago

The temperature is -3°F at 7:00 A.M. During the next 4 hours, the temperature increases 21°F. What is the temperature at 11:00 A

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Answer: 18°F

Step-by-step explanation: if you add 21 and -3 you get 18

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