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gtnhenbr [62]
3 years ago
14

Jerry has taken a random sample of students and determined the number of electives that each student in his sample took last yea

r. There were 19 students in the sample. Here is the data on the number of electives the 19 students took: 6, 6, 8, 7, 7, 7, 8, 9, 10, 8, 7, 6, 9, 6, 8, 7, 9, 7, 10. The mean of this sample data is 7.63. Pls help me
What is the sample proportion of students who took fewer than the mean number of electives?

A. `10/19`

B. `6/19`

C. `7/19`

D. There is not enough data to answer this question.
Mathematics
1 answer:
Zinaida [17]3 years ago
4 0

Answer:

A. 10/19

Step-by-step explanation:

The mean is 7.63, so 8,9, and 10 are above that. There are 9 that are either 8, 9, or 10. 19-9=10, therefore making the only possible answer 10/19

I hope this helps you :)

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A line is defined by the equation y = two-thirds x minus 6. The line passes through a point whose y-coordinate is 0. What is the
DedPeter [7]

y = \cfrac{2}{3}x~~ - ~~6~\hspace{10em} (\stackrel{x}{?}~~,~~\stackrel{y}{0}) \\\\\\ 0=\cfrac{2}{3}x~~ - ~~6\implies 6=\cfrac{2x}{3}\implies 18=2x\implies \cfrac{18}{2}=x\implies 9=x

3 0
2 years ago
Which number belongs to the solution set of the equation below? x - 7 = 35 A. 22 B. 28 C. 42 D. 41
TiliK225 [7]
Hey there!

To find a solution that would satisfy the value of x, the first thing you must do is to first solve for x. To solve x-7=35, you must add 7 to both sides to isolate x. This should result in x=42.

When you look at the answer choices given, notice that choice C is the solution for x, 42.

Therefore, your answer would be C. 42.

To check if this is correct, you can plug 42 back into the equation x-7=35 to see if you get a true statement:
42-7=35
35=35

Hope this helps!
6 0
4 years ago
Assuming that one-pint is equal to 473 ml, how many pints can be found in 3 liters?
Svetlanka [38]
Given that 1 pint is equal to 437 ml
and 1000 ml=1 liter
then
1 pint =(437/1000) liters
simplifying we get:
1 pint= 0.437 liters
thus amount of pints in 4 liters will be:
4/0.473
=8.45666586
~8.5 pints
4 0
3 years ago
The figure is made up of hemisphere and a cylinder.
cluponka [151]

Answer:

Data: (Cylinder)

h (height) = 8 cm

r (radius) = 5 cm

Adopting:

V (volume) = ?

Solving:(Cylinder volume)

Note: Now, let's find the volume of a hemisphere.

Data: (hemisphere volume)

V (volume) = ?

r (radius) = 5 cm

Adopting:

If: We know that the volume of a sphere is , but we have a hemisphere, so the formula will be half the volume of the hemisphere

Formula: (Volume of the hemisphere)

Solving:

Now, to find the total volume of the figure, add the values: (cylinder volume + hemisphere volume)

Volume of the figure = cylinder volume + hemisphere volume

Volume of the figure = 628 cm³ + 261.6 cm³

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Shanking draws a line that is 25cm long. Kathi draws a line that is 30cm longer than shaniks line. How long is kathis line
Dvinal [7]

Answer:

55

Step-by-step explanation:

If Kathi´s line is 30cms longer than Shanking´s, you would just add 30 and 25 to get the length of Kathi´s line.

7 0
3 years ago
Read 2 more answers
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