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mr Goodwill [35]
3 years ago
11

A distribution of numbers has the following five-number summary: 13.7, 24.5, 38.9, 50.0, 73.2 True or False? These numbers can b

e used to calculate the standard deviation of the distribution. A. True B. False
Mathematics
2 answers:
Oxana [17]3 years ago
6 0

Answer:

False

Step-by-step explanation:

Given that a distribution of numbers has the following five-number summary: 13.7, 24.5, 38.9, 50.0, 73.2

These five numbers are known as minimum, I quartile, Median, III quartile and max respectively.

This gives an idea about the scatter of data on either side of median, the interquartile range, and also help to find outliers if any.

But std deviation is the square root of variance. Variance is the average of sum of squares of deviations from the mean.

Hence without knowing mean and each entry just with five number summary we may not be able to find out the standard deviation.

DIA [1.3K]3 years ago
3 0

Answer:

the answer is false

Step-by-step explanation:

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Which expression below gives the average rate of change of the function h(x)=4^(x+2)+7 on the interval –3 ≤ x ≤ 5?
viktelen [127]

Answer:

\frac{4^8-1}{32}

Step-by-step explanation:

h(x)=4^{(x+2)} +7

We know that formula for average rate of change of a function from a to b is

\frac{f(b)-f(a)}{b-a}

Here f equals h and a =-3 b=5

h(a) = 4^{5+2} +7 = 4^7+7

and

h(b) = 4^{-3+2} +7 = \frac{1}{4} +7

h(b)-h(a) =4^7-\frac{1}{4} =\frac{4^8-1}{4}

b-a = 5-(-3) =8

Hence average rate of change is

\frac{4^8-1}{4}(\frac{1}{8} )=\frac{4^8-1}{32}

7 0
3 years ago
Read 2 more answers
Help with this question
laiz [17]

Answer:

A. x = -2

Step-by-step explanation:

2x² + 7x + 6 = 0

2(-2)² + 7(-2) + 6 = ?

8 + -14 + 6 = 0

7 0
3 years ago
A person pay $3500 for 42 lawn mowers, then sells each lawnmower for $99. How much profit does the store make?
masya89 [10]

Answer:

$658

Step-by-step explanation:

42 x 99 = 4,158

4,158 - 3,500 = 658

5 0
3 years ago
A 32 foot tall tree casts a shadow that is 48 feet long. How far away from the tree is a 6 ft person? Help! :)
shusha [124]

Answer:

Henry Clay believed that American democracy depended on “that great principle of compromise”. What did he mean? Do you agree? Why?12

Step-by-step explanation:

4 0
3 years ago
The circle below is centered at the origin and has a radius of 4. What is its equation?
Alecsey [184]

Answer:

C) x^2 + y^2 = 16

Step-by-step explanation:

<h2><u>Find the equation </u></h2>

since the radius is  4 this means that anywhere from the center of the circle to the edge of the circle is 4. hence :

place the horizontal line of the radius where y = 0 .

this means that if y = 0 , then x = 4

therefore :

x^2 + y^2

4^2 + 0^2

= 16

<h3><u>hence the answer is C ) x^2 + y^2 = 16</u></h3>
7 0
3 years ago
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