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ratelena [41]
2 years ago
5

Fifty eight students were surveyed about how frequently they text during lunch. The results are summarized below. Which statemen

ts are true about the data for the number of texts sent during lunch? Select all that apply.
Chart: (the numbers below are next to each other)
number of texts- 0,2,3,5,6,8,9,11,14
number of students-3,4,2,5,3,8,6,15,12
Box Plot:
lunch texts-0,6,9,11,14
The Choices:
The median number of texts sent is 9
1) The IQR for the data is 6
2) The third quartile is 11
3) The data is skewed to the left
4) The mean of the data will be greater than the median
5) The lowest 25% of texts sent at lunch is between 0 and 6
6) The middle 50% of texts sent at lunch is between 6 and 9
Need help please and thanks :((
Mathematics
1 answer:
umka2103 [35]2 years ago
4 0

Answer:The median number is 9 , Q3 is 11, data is skewed left, lowest 25%

Step-by-step explanation:

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6 0
2 years ago
1. Howard's CD House sells new CDs for $15 each and used CDs for $6 each. Bre'anna bought 51 CDs and spent a
Yanka [14]

The numbers of new CDs is 30 and the old CDs is 21.

To solve this problem, we have to write a system of equations in which we would know the numbers of each types of CD she bought.

<h3>System of Equations</h3>

This is used to solve a series or complex of word problems in which we can represent in a mathematical statements;

  • Let n represents numbers of new CDs
  • Let u represents numbers of old CDs

The equations can be represented as

n + u = 51 ...equation(i)\\15n + 6u = 576 ... equation(ii)

Let's take equation (i)

Making n the subject of formula

n + u = 51\\n = 51 - u...equation(iii)

we can put equation (iii) into equation (ii)

15n + 6u =576\\n = 51 - u\\15(51 - u) + 6u = 576\\765-15u + 6u = 576\\collect like terms\\765-576=15u - 6u\\189=9u\\9u/9 = 189/9\\u = 21

Let's put the value of u into equation (i)

n + u = 51\\u = 21\\n + 21 = 51\\n = 51 - 21\\n = 30

From the calculations above, the numbers of new CDs is 30 and the old CDs is 21.

Learn more on system of equations here;

brainly.com/question/13729904

4 0
2 years ago
Which measure of center would you use to describe a data set with no extreme values and no big gaps?
xxTIMURxx [149]

Answer:

The median

Step-by-step explanation:

The median always exists. The median does not have to be one of the data

3 0
3 years ago
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Solve the equation for x. <br><br> x + 13 = 22​
AveGali [126]
X=22-13
x=9
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2 years ago
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I don't understand the first one.
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No the 6 times 8 is 48 and the 9 times 12 is 108
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3 years ago
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