I’m having a hard time with this. Is this a typo by the teacher or should I actually be looking for a size?

Mathematics

1 answer:

Lemur [1.5K]3 years ago

5 0

Step-by-step explanation:

There are 12 games in the population. You need to use a random number generator to choose 2 of these games.

RandomSample[{1,2,3,4,5,6,7,8,9,10,11,12},2]

Let's say the first sample you get is {1,5}. That corresponds to game times of 8 minutes and 7 minutes. The mean game time for that sample is 7.5 minutes. So the first row in your table would be:

$\left[\begin{array}{ccc}Sample&List\ of\ Game\ Times&Mean\ Game\ Time\\1&8,7&7.5\end{array}\right]$

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Lucy spent 4 hours babysitting last week. her sister Maria spin blank times as many hours babysitting as Lucy that same week. wh

navik [9.2K]

Time spent babysitting by Lucy = Tl = 4 hours

Time spent babysitting by Maria = Tm = x * 4 hours

Now we need to determine for what values of x is Tm > Tl

⇒ x * 4 > 4

⇒ x > 1

So for x > 1, Mary spends more time babysitting than Lucy does

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4 years ago

The surface area of a rectangular prism is 792 units2. The length of the prism is 2 times the width, and the width is 4 times th

AveGali [126]

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3 years ago

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Simplify 1) root 45 - 3 root 20 +4 Root 5 plzz write the sum

BARSIC [14]

= root 45 - 3 root 20 + 4 root 5
= root 9 * root 5 - 3 * root 4 * root 5 + 4 root 5
=3 root 5 - 3 * 2 * root 5 + 4 root 5
= root 5 ( 3 - 6 + 4 )
= root 5 *1
= root 5

3 0

3 years ago

Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.

trasher [3.6K]

Lets make a list
assuming they have 2 cubes with 1-6 on them
combos are
1,1
1,2
1,3
1,4
1,5
1,6
2,1
2,2
2,3
2,4
2,5
2,6
3,1
3,2
3,3
3,4
3,5
3,6
4,1
4,2
4,3
4,4
4,5
4,6
5,1
5,2
5,3
5,4
5,5
5,6
6,1
6,2
6,3
6,4
6,5
6,6

out of all 36 times, only 3 times did the sum equal 4
3 times he will roll a 4

ALL CREDIT GOES TO ANOTHER ANSWER THIS IS NOT MINE!

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4 years ago

A square picture with side length 30 cm is scaled by 60% on a photocopier the copy is then scaled by 60% again. What is the side

Sonja [21]

Answer:

10.8 cm

Step-by-step explanation:

we know that

1) A square picture with side length 30 cm is scaled by 60% on a photocopier

Remember that

$60\%=60/100=0.60$