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3 years ago

2. Find the Median Average of these quiz scores:93, 79, 83, 89, 90, 71, 85, 93, 88, 86

Mathematics

2 answers:

omeli [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Hey!

I think there might be some confusion on the problem. Here's what I get:

Arranging in ascending order:

$71,\:79,\:83,\:85,\:86,\:88,\:89,\:90,\:93,\:93$

Since there are 10 terms, that is an even number. We will find the two numbers that are middlemost, and then divide them by two.

We see that 86 and 88 are the middlemost. 86 + 88 = 174

174 ÷ 2 = 87.

Thus, the median is $\boxed{87}$ .

Hope this clears up any confusion!

- Sahkfam

steposvetlana [31]3 years ago

3 0

Answer:

90 and 71 or 80.5

Step-by-step explanation:

find middle two numbers

add them together

divide by 2

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Step-by-step explanation:

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aleksandrvk [35]

Answer:

48.668 ≤ μ ≤ 63.332

Step-by-step explanation:

Given the data:

Sample (X) : 71, 45, 54, 75, 50, 49, 63, 55, 48, 50

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Confidence interval :

m ± t(α/2 ; df) * s/√n

m - t(α/2 ; df) * s/√n ≤ μ ≤ m + t(α/2 ; df) * s/√n

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Calculating the sample mean and standard deviation using calculator to save computation time :

71, 45, 54, 75, 50, 49, 63, 55, 48, 50

m = 56 ; s = 10.25

m - t(0.05/2 ; 9) * s/√n ≤ μ ≤ m + t(0.05/2 ; df) * s/√n

From t table : t(0.05/2 ; 9) = t(0.025, 9) = 2.262

56-2.262 * (10.25/√10) ≤ μ ≤ 56+2.262 * (10.25/√10)

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3 years ago

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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

2. Find the Median Average of these quiz scores:93, 79, 83, 89, 90, 71, 85, 93, 88, 86​

2. Find the Median Average of these quiz scores:93, 79, 83, 89, 90, 71, 85, 93, 88, 86