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2 years ago

6

26.68 is 58% of what number?

1 answer:

LekaFEV [45]2 years ago

4 0

46 because 58% of 46 is equivalent to multiplying them I think so yeah 58% x 46 = 26.68

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7. These values represent the expected number of paintings a person will produce over the next 10 days. 0, 0, 0, 1, 1, 1, 2, 2,

Natasha_Volkova [10]

The mean of a dataset is the average of the dataset.

The mean is 1.5
The standard deviation is 1.58
The median remains unchanged, the mean increases, and the standard deviation decreases when <em>5 is increased to a larger value</em>

The given parameters are:

$\mathbf{x = 0, 0, 0, 1, 1, 1, 2, 2, 3, 5}$

<u>(a) Mean and Standard deviation</u>

The mean of the dataset is calculated using:

$\mathbf{\bar x = \frac{\sum x}{n}}$

So, we have:

$\mathbf{\bar x = \frac{0+ 0+ 0+ 1+ 1+ 1+ 2+ 2+ 3+ 5}{10}}$

$\mathbf{\bar x = \frac{15}{10}}$

$\mathbf{\bar x = 1.5}$

Hence, the mean is 1.5

The standard deviation is calculated using:

$\mathbf{\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}}}$

So, we have:

$\mathbf{\sigma_x = \sqrt{\frac{(0 - 1.5)^2 + (0- 1.5)^2 + (0- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (2- 1.5)^2 + (2- 1.5)^2 + (3- 1.5)^2 + (5- 1.5)^2}{10 - 1}}}$

$\mathbf{\sigma_x = \sqrt{\frac{22.5}{9}}}$

$\mathbf{\sigma_x = \sqrt{2.5}}$

$\mathbf{\sigma_x = 1.58}$

Hence, the standard deviation is 1.58

<u />

<u>(b) When 5 is increased to a larger value</u>

When 5 is increased:

The median remains unchanged
The mean increases
The standard deviation decreases

Read more about median, mean, and standard deviation at:

brainly.com/question/12598273

3 0

3 years ago

Johns grade on his math test was 94 his grade on the second test was 85 what is the percent change in his grade to the nearest p

Olenka [21]

Answer:

req percentage change=9.5744%

Step-by-step explanation:

change=94-85=9

%change= $\frac{9\times100}{85}$

%change = $\frac{900}{85}$

%change =9.5744%

4 0

3 years ago

Find the area of the following shape, you must show all work to recieve credit,

svp [43]

What is the shape for your problem?

7 0

3 years ago

Using the quadratic formula to solve 4x^2-3x + 9=2x + 1 what are the values of x

Alchen [17]

Answer:

x=5±√−103/8

Step-by-step explanation:

There's no real solutions

4x2−3x+9−(2x+1)=2x+1−(2x+1)

4x2−5x+8=0

x=−b±√b2−4ac/2a

x=−(−5)±√(−5)2−4(4)(8)/2(4)

x=5±√−103/8

8 0

3 years ago

Sidney skated for 1 1/10 hours last month and 8 7/10 hours this month. How many

olganol [36]

Answer:

the number of hours does sidney skate in all is 9.8 hours

Step-by-step explanation:

The computation of the number of hours does sidney skate in all is as follows:

= Last month + this month

$= 1 \frac{1}{10} + 8 \frac{7}{10}\\\\= \frac{11}{10} + \frac{87}{10}\\\\= \frac{98}{10}$

= 9.8 hours

Hence, the number of hours does sidney skate in all is 9.8 hours

3 0

3 years ago