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3 years ago

100, 88, 76, 78, 92, 94, 84, 98, 82, 90 What is the Nicole’s median score?

2 answers:

4 0

To find the median, order the numbers in the data set from least to greatest (or greatest to least, either one works) and then find the number in the middle. If there are 2 numbers in the middle, find their mean.

Step 1: Ordering the numbers.
<span>Original: 100, 88, 76, 78, 92, 94, 84, 98, 82, 90
Ordered: </span>76, 78, 82, 84, 88, 90, 92, 94, 98, 100

Step 2: Find the median (middle number).
The median is the number in the center.
Count in from each side equally to find the middle number.
76, 78, 82, 84, 88, 90, 92, 94, 98, <span>100
</span>78, 82, 84, 88, 90, 92, 94, 98
82, 84, 88, 90, 92, 94
84, 88, 90, 92
88, 90
88 and 90 are the middle numbers.
Since there are 2 numbers in the middle, we must find their mean.

Step 3: Find the mean of the 2 middle numbers.
Mean is also known as average.
To find this, add up the numbers and then divide by the amount of numbers there are.
In this case, that means adding 88 and 90 then dividing their sum by 2.
This can be represented by the equation (88 + 90) ÷ 2.
88 + 90 = 178
178 ÷ 2 = 89
89 is the final answer, it is the median.

Answer:
The median of this data set is 89.

Hope this helps!

NemiM [27]3 years ago

3 0

Answer:

Step-by-step explanation:

just took the test

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<h3>How to prove a Parallelogram?</h3>

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Step-by-step explanation:

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3 years ago

you go to Frontier City with your parents, brother and sister. The cost for adults is $12.50, and the cost for children is $8.00

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9514 1404 393

Answer:

cost for adults: 2×$12.50

cost for children: 3×$8.00

total cost: 2×$12.50 +3×$8.00

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Step-by-step explanation:

Assuming I, my brother, and my sister qualify for children's tickets, we have ...

cost for adults: 2×$12.50

cost for children: 3×$8.00

total cost: 2×$12.50 +3×$8.00

Evaluation:

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3 years ago

Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul

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Answer:

Test statistic = 1.3471

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Accept the null hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4

Sample mean, $\bar{x}$ = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4\\H_A: \mu \neq 4$

We use two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

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Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

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3 years ago