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3 years ago

5

What kind of graph would be best to show the results of a group of students who were asked about their favorite kind of pizza. E

xplain your answer in complete sentences.

1 answer:

BartSMP [9]3 years ago

4 0

Answer:

A graph that would be best for a group of students trying to figure out there favorite pizza is a pie graph.

Step-by-step explanation:

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16 5x=31 what does x equal

liraira [26]

If you mean 165x = 31 , X = <span>0.19871794871
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3 years ago

The perimeter of a triangle is 37. One side of triangle is one foot longer than the second side. The third side is tgree feet lo

disa [49]

Answer:

First: 12 feet

Second: 11 feet

Third: 14 feet

Step-by-step explanation:

Let the second side of the traingle be x

First side of the triangle= x+1

Third side of the triangle= x+3

x+x+1+x+3 = 37

3x+4 = 37

3x = 37-4

3x = 33

x = 11

First side of the triangle= (11)+1

= 12

Second side of the triangle= 11

Third side of the triangle= (11)+3

= 14

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3 years ago

The first eight quizzes in this class had average scores of 8,9,9,8,8,9,8,7. This gives a sample mean of 8.25 and a sample stand

alexira [117]

Answer:

<em>Test statistic </em>

<em> </em> $t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

t = <em>1.076</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given Mean of the Population (μ) = 8.0

<em>Mean of the sample (x⁻) = 8.25</em>

Given data

8,9,9,8,8,9,8,7

Given sample size n= 8

Given sample standard deviation(S) = 0.661

<u><em>Step(ii):-</em></u>

<em>Null hypothesis : H: (μ) = 8.0</em>

<em>Alternative Hypothesis :H:(μ) > 8.0</em>

<em>Degrees of freedom = n-1 = 8-1=7</em>

<em>Test statistic </em>

<em> </em> $t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$ <em></em>

<em> </em> $t = \frac{8.25 -8.0}{\frac{0.661}{\sqrt{8} } }$ <em></em>

<em> t = 1.076</em>

<em>Critical value </em>

<em> t₍₇,₀.₀₅₎ = 2.3646</em>

<em>The calculated value t = 1.076 < 2.3646 at 0.05 level of significance</em>

<em>Null hypothesis is accepted</em>

<em>Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0</em>

<em></em>

3 0

3 years ago