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Butoxors [25]
3 years ago
7

You want to predict which candidate will likely be voted Seventh Grade Class President. There are 560 students in the seventh-gr

ade class. You randomly sample 3 different groups of 50 seventh-grade students. The results are shown.
Candidate Preference
Candidate A Candidate B
Sample 1 -27 23
Sample 2 -22 28
Sample 3 -15 35

Use each sample to make an estimate for the number of students in seventh grade that vote for Candidate A. Round your answer to the nearest whole number.

Sample 1: about ____ students

Sample 2: about ___ students

Sample 3: about ___ students

b. Who do you expect to be voted Seventh Grade Class President?
A. Candidate A
B. Candidate B

Explain.
Mathematics
1 answer:
Inga [223]3 years ago
7 0

Answer:

candidate b because it's mostly likely to have more people i think

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luda_lava [24]

Answer:

7/15 for dime

6/15 for pennies

Step-by-step explanation:

7/15 because 7+2+6=15 and there are 7 dimes so 7/15.

6/15 because there are 15 coins and there are 6 pennies so 6/15.

15 is the total so 7 and 6 have to go over it.

5 0
3 years ago
At the beginning of the school year, Jamie had
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Answer:

Hmmm let me solve then I will answer

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3 years ago
Photos and videos have become an important part of the online social experience, with more than half of Internet users posting p
klasskru [66]

Answer:

0.82

Step-by-step explanation:

Given:

<em>A</em> be the event that an Internet user posts photos taken by themselves.

<em>B</em> be the event that an Internet user posts photos taken by themselves.

P(A) = 0.47

P(A) = 0.28

P(A or B) = P(A\cup B) = 0.52

To find:

Conditional probability that an Internet user posts photos given that they post videos.

OR

P(A/B) = ?

Solution:

<em>Formula </em>to be used to find the required conditional probability:

P(A/B) = \dfrac{P(A \cap B)}{P(B)}

For this, P(A \cap B) is required.

<em>Formula</em>

P(A \cup B) = P(A) + P(B) - P(A \cap B)

0.52=0.47+0.28-P(A\cap B)\\\Rightarrow P(A\cap B)=0.23

Now, the required conditional probability is:

P(A/B) = \dfrac{P(A \cap B)}{P(B)}\\\Rightarrow P(A/B) = \dfrac{0.23}{0.28}\\\Rightarrow \bold{P(A/B)} = 0.82}

So, the answer is <em>0.82</em>.

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4 years ago
How many kilometer are there
Archy [21]

Answer:

0.0001 kilometers I hope I helped

6 0
3 years ago
A mysterious box is delivered to the dinner party you are attending. The label on the box says that the volume of a box is the f
Lapatulllka [165]
F(x) = x³ + 3x² - 10x - 24

The root factors must be the factors of 24.
1 x 24 ; 2 x 12 ; 3 x 8 ; 4 x 6.

The most probable roots would be -4, -3, -2, -1, 1, 2, 3, or 4.

Using synthetic division, one can find that the smallest root is -3.
(x - 3)(x² - 6x - 8). The quadratic can now be factored as (x + 2)(x - 4) and further factored as (x - 3)(x + 2)(x - 4). 

The correct factors are: (x - 3) (x + 2) (x - 4)
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