Ask question

Ask question

All categories

3 years ago

11

100 students take a course pass/fail. If they pass they get 4 points towards their GPA, if they fail they get 0. If 90 students

pass, what is the mean and standard deviation (to 1 decimal) of the points earned?
mean: _______a0
Standard Deviation: _________a1

1 answer:

zheka24 [161]3 years ago

4 0

10 of them fail so 10 of them get 0 and no points to there GPA

You might be interested in

3.) If y varies directly as x and y = 24 when x = 6, find the variation constant and the equation of variation.

Talja [164]

<h2><u>Problem</u>:-</h2>

3.) If y varies directly as x and y = 24 when x = 6, find the variation constant and the equation of variation.

<h2><u>Solution</u>:-</h2>

A. Express the statement “y varies directly as x”, as y = kx .

B. Solve for k by substituting the given values in the equation.

$\sf\rightarrow{y = kx}$

$\sf\rightarrow{24 = 6k}$

$\sf\rightarrow{K = \frac{24}{6} }$

$\sf\rightarrow{K={\color{magenta}{4}}}$

<h2><u>Answer</u>:-</h2>

Therefore, the constant of variation is 4.

C. Form the equation of the variation by substituting 4 in the statement y = kx. Thus , <u>y = 4 x.</u>

<u> ${\large{—————————————————————}}$ </u>

#CarryOnMath⸙

7 0

3 years ago

The distance between (2, 3) and (1,7) is:

devlian [24]

Answer:

$\sqrt{17}\: units$

Step-by-step explanation:

$d = \sqrt{ {(2 - 1)}^{2} + {(3 - 7)}^{2} } \\ \\ = \sqrt{ {(1)}^{2} + {( - 4)}^{2} } \\ \\ = \sqrt{ 1 + 16 } \\ \\ d= \sqrt{17} \\$

4 0

4 years ago

Read 2 more answers

Find y when x=12 if y=15 when x=3

larisa [96]

The answer would be y=60.

I think.

4 0

3 years ago

A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an item that

hammer [34]

F(x) = x - 0.15x
sale = original - 0.15(original)
y = 0.85x

4 0

3 years ago

Y=91 if x is 4 what is y

Elodia [21]

Answer:

y=91

.........???????

4 0

3 years ago