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Natasha_Volkova [10]

3 years ago

13

2. Five students reported the amount of time (in minutes) they spent studying for an AP Statistics test the night

1 answer:

8090 [49]3 years ago

5 0

Answer:

Step-by-step explanation:

a) Standard deviation of 10 mean the fluctuation for values range from +10 to -10 from the mean.

b) Since the sixth student is 50 minutes, which is higher than the mean of 45 minutes, this will bring the over all mean higher that 45 minutes. Also, since 50 falls within the standard deviation range (35 to 55), this mean the new standard deviation will be smaller than 10.

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translate into an algebraic expression: 120 is increased by d % and increased by 25% . What is the result ?

frez [133]

The result is number $r$ where:

$r=(120+120\cdot\frac{d}{100})+(120+120\cdot\frac{d}{100})\cdot\frac{25}{100}$

Hope this helps.

6 0

4 years ago

Luci cuts a board that is 5/7 yard long into pieces that are 5/14 yard long. How many pieces does she cut?

zvonat [6]

Answer:

So total number of pieces will be 2

Step-by-step explanation:

We have given the total length of the board $=\frac{5}{7}yard$

It is given that Luci cuts the board into pieces of $=\frac{5}{14}yard$ long

We length of each piece = $=\frac{5}{14}yard$

We have to find the total number of pieces

For finding total number of pieces we have to divide the total length of board by length of each piece

So number of pieces $=\frac{\frac{5}{7}}{\frac{5}{14}}$ = 2

4 0

3 years ago

Out of the 150 students at a summer camp, 72 signed up for canoeing. They were 23 students who signed up for trekking, and 13 of

FrozenT [24]

15% didn't sign up for canoeing or trekking

3 0

3 years ago

Define same side interior

zlopas [31]

Answer:

two angles that are on the same side of the transversal and on the interior of (between) the two lines.

Step-by-step explanation:

3 0

3 years ago

A snack stand sold hot dogs and chips at a recent game. The hot dogs cost $2.50 and the snacks cost $0.75. After the game, they

fiasKO [112]

x = hot dogs

y = snacks

x +y = 175

x = 175-y

2.50x + 0.75y = 262.50

2.50(175-y) +0.75y = 262.50

437.50-2.50y + 0.75y = 262.50

-1.75y = -175

y = -175 / -1.75 = 100

100 snacks & 75 hot dogs

7 0

3 years ago

Read 2 more answers