All categories

3 years ago

Rachel wants to know the mean price of all the sunglasses on a display rack.

2 answers:

8 0

The mean price of the sunglasses is $17.

If you add up all the values, you will get a total of 136. Now, divide this total by the total number of values.

There are 8, so 136 divided by 8 is 17. That is the mean.

Tems11 [23]3 years ago

5 0

Answer: 17 dollars I took the test this was the correct answer

You might be interested in

If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?

Alex777 [14]

Answer:

The answer is B (From the cup to the hand)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the value of y for the line that has a slope of 1 and goes through the points (-4, y) and (-2, 8)?

Pavel [41]

Answer:

y = 6

Step-by-step explanation:

To write the equation of a line, calculate the slope between points (-4,y) and (-2,8). Substitute m = 1 and solve for y.

$m = \frac{y_2-y_1}{x_2-x_1}\\\\ 1 = \frac{y-8}{-4--2}\\\\ 1 =\frac{y-8}{-2}\\\\-2=y-8\\\\6=y$

6 0

4 years ago

What is the difference of the two expressions shown below? (3/4x + 2) - (1/4x + 5)

faltersainse [42]

Answer:

-4. (e) (2-7)(5–3)+32. (-5)(2) +9. -10+9. -8710. 913 - 12 - 13. Ex: Evaluate 4x-7 when x=5. 4(5)-7 ... Ex: In the following exercise we show how two linear expressions are ... equivalency of the two expressions you determined to be equivalent above? ... Ex: Determine an expression that is equivalent to 10x+15? lox+1. 5(2X+3).

Step-by-step explanation:

Here is my notes hope it helped

5 0

3 years ago

Which of these measurements is expressed to four significant figures?

Reil [10]

Answer: The answer is d. 16.530 m with 4 significant figures

Step-by-step explanation:

Significant figures are the digits that contribute meaning in the expression

In the given options

a. $2.6\times 10^4$

Here only 2 and 6 are counted as significant digits

b. $5.300\times 10^{-7}$

Here Since the zeros are after decimal So they will not be counted in significant figure i.e. S fig =2

c. 0.108

Here No of significant figures will be 3

d. 16.530

Here the no of significant figures are 4 i.e 1 6 5 3

So the answer is d.16.530

4 0

3 years ago

Read 2 more answers

A botanist wishes to estimate the mean number of seeds for a certain fruit. She samples 11 specimens and finds the average numbe

Aliun [14]

Answer:

a)The 98% of confidence intervals are

Lower bound of CI = 47 -3.82436 = 43.1756

Upper bound of CI = 47 + 3.82436 = 50.8243

b) The conditions are required for the validity of the interval

A) μ known

Step-by-step explanation:

Explanation:-

The given sample size is 'n' =11

Given the average number of seeds is 47 with a standard deviation of 7

Sample mean (x⁻) = 47

Standard deviation (S) = 7

The 98% of confidence intervals are

$(x^{-} - t_{0.02} \frac{S}{\sqrt{n} } , x^{-} + t_{0.02}\frac{S}{\sqrt{n} } )$

$(47 - t_{0.02} \frac{7}{\sqrt{11} } , 47+ t_{0.02}\frac{7}{\sqrt{11} } )$

The degrees of freedom = n-1 =11-1 =10

t₀.₀₂= 1.812 ( from t - table)

now the intervals are

$(47 - 1.812 \frac{7}{\sqrt{11} } , 47+ 1.812\frac{7}{\sqrt{11} } )$

Lower bound of CI = 47 -3.82436 = 43.1756

Upper bound of CI = 47 + 3.82436 = 50.8243

The conditions are required for the validity of the interval

A) μ known

Explanation:-

If a random sample xi of size 'n' has been drawn from a normal population with a specified mean (μ) known.

The limit for (μ) is given by

$(x^{-} - t_{0.02} \frac{S}{\sqrt{n} } , x^{-} + t_{0.02}\frac{S}{\sqrt{n} } )$

5 0

3 years ago