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Sladkaya [172]
3 years ago
9

Order these numbers from least to greatest-

Mathematics
2 answers:
rodikova [14]3 years ago
6 0
2.54,2.62,9,15,20,32
77julia77 [94]3 years ago
3 0
2.54, 2.62, 9, 15, 20, 32
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Can someone please solve this problem for me. I'm kind of confused-<br>This is probability too-​
Andrej [43]

Step-by-step explanation:

<h3>(1)</h3>

The probability of landing on the color gray ONCE

= 2/7

Since it is spun 35 times, the expected number of times that it lands on a gray will be

(2/7 × 35) = 10 times

<h3>(2)</h3>

The probability of landing on the color black ONCE

= 1/7

Since it is spun 105 times, the expected number of times that it lands on a black will be

(⅐ × 105) = 15 times

The formula is:

Expected value = (Number of spinning)×(probability of landing on a colour)

5 0
2 years ago
In the journal Knowledge Quest (January/February 2002), education professors at the University of Southern California investigat
Greeley [361]

Answer:

a,b) x represents the general attitude of these students toward recreational reading.

c) The 10th percentile of sample means is 102.51.

d) P(x < 100) = 0.01390

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by

Z = \frac{X - \mu}{\sigma}

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this case, we have that:

The mean score for this population of children was 106 points, with a standard deviation of 16.4 points, so \mu = 106, \sigma = 16.4.

a,b) What is x?

x represent the mean recreational reading attitude score for the sample. So x represents the general attitude of these students toward recreational reading.

c) What sample mean would be the cutoff for the bottom 10% of sample means. (You are being asked for the 10th percentile of sample means.)

This is the value of X when Z has a pvalue of 0.10.

Looking at the Z table, that is Z = -1.28.

We are working with the mean of the sample, so we have to find the standard deviation of the sample. That is

s = \frac{\sigma}{\sqrt{n}} = \frac{16.4}{\sqrt{36}} = 2.73

Z = \frac{X - \mu}{\sigma}

-1.28 = \frac{X - 106}{2.73}

X - 106 = -1.28*2.73

X = 102.51

The 10th percentile of sample means is 102.51.

d) Find P(x < 100).

This is the pvalue of Z when X = 100.

Z = \frac{X - \mu}{\sigma}

Z = \frac{100 - 106}{2.73}

Z = -2.20

Z = -2.20 has a pvalue of 0.01390.

So P(x < 100) = 0.01390.

6 0
3 years ago
Simplify<br> 4(5x^2-9x+7)+2(-10^2+18x-13)
Jlenok [28]
The answer is 20x^2 - 198
4 0
3 years ago
Read 2 more answers
The equation y + 6 = one-third (X minus 9) is written in point-slope form. What is the equation written in slope-intercept form?
stiks02 [169]

The equation written in slope-intercept form is y = (1/3)x -9

<h3>What is a linear Equation ?</h3>

A linear equation is that which can be represented in the form of y =mx +c , m is the slope and c is the intercept.

The given equation is

y+6 = 1/3(x-9)

To determine the slope and the intercept this equation needs to be solved

y+6 = (1/3)x - 3

y = (1/3)x -9

Therefore this is the slope intercept format , here

the slope = 1/3

intercept = -9

To know more about Linear Equation

brainly.com/question/11897796

#SPJ1

4 0
1 year ago
H
tigry1 [53]

Answer:

4448 feet²

Step-by-step explanation:

Using the formula A = 2((l)x(w) + (l)x(h) + (w)x(h)) we can take the length, width and height and plug them in. A = 2(44x21 + 44x20 + 21x20), solving this equation we get 4448 feet^{2}.

8 0
2 years ago
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