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3 years ago

Of the 200 students at your school 75% live more than a mile away. How many students live less than a mile from the school?

Mathematics

1 answer:

aev [14]3 years ago

3 0

Answer:

150

Step-by-step explanation:

75% of 100 is 75. Then times that by two and and you get 150.

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What is the probability that when you roll the number cube (6 sides) twice, you will get 1 on both rolls?

Romashka-Z-Leto [24]

Answer:

1/36

Step-by-step explanation:

When you roll it the first time, the chances to get a 1 is 1/6.

when you roll it the second time, the chance is still 1/6, but the chance of rolling one twice in a row, is the product of the probabilities:

1/6 * 1/6 = 1/36

4 0

2 years ago

Translate the word phrase into a math expression.

mote1985 [20]

Answer:

its d cuz im a big brain :)

7 0

2 years ago

Read 2 more answers

) y = 2x - 4<br> y = -3x + 1

tatiyna

Answer:

I think x = -8. Hope this helps!! :)

3 0

2 years ago

For each of these lists of integers, provide a simple formula orrule that generates the terms of an integer sequence that begins

mariarad [96]

Answer:

The next three terms for each are: a) 123, 146, 171; b) 47,51,55; c) 10000,10001, 10010; d)8,8,8; f)654729075,13749310575,316234142225; g)0,0,0

Step-by-step explanation:

In a) the last number +(2i+1) in which i is the number of terms=1,2,3...

b) n+4, for any last number, you add 4

c) 1,0 and the same is repeated for the next decimal

d) n=sum of 2 previous different numbers. The frequency is given by 2i-1 in which is is the number of terms i=1,2,3...

e) missing

f) ni+1=n*(2i-1) in which ni+1 is the resulting number, n is the previous number and i is the number of terms=1,2,3...

g) it is 1 for odd numbers and 0 for even numbers. The frequency is given by i+1, in which the number of terms i= 0,1,2,3...

6 0

3 years ago

Suppose we take two different random samples from the same population of test scores. The population mean and standard deviation

Leto [7]

Answer:

The 95% confidence interval obtained with a sample size of 64 will give greater precision.

Step-by-step explanation:

We are given the following in the question:

A 95% confidence interval is calculated with the following sample sizes

$n_1 = 25\\n_2 = 64$

The population mean and standard deviation are unknown.

Effect of sample size on confidence interval:

As the sample size increases the margin of error decreases.
As the margin of error decreases the width of the confidence level decreases.
Thus, with increased sample size the width of confidence level decreases.

If we want a confidence interval with greater precision that is smaller width, we have to choose the higher sample size.

Thus, the 95% confidence interval obtained with a sample size of 64 will give greater precision.

3 0

3 years ago