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3 years ago

PLEASE HELP!!! I WILL GIVE BRIANLEY TO CORRECT ANSWER!!

Mathematics

1 answer:

Tatiana [17]3 years ago

7 0

Would it just be 45 songs?

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Mrs. Daly's reading classes were surveyed about their reading preferences. The data is summarized in the table below.

andriy [413]

Answer:

Required probability is 0.19

Step-by-step explanation:

The two-way table for the given data is,

Fiction Non-Fiction Total

9th grade 35 8 43

10th grade 52 12 64

Total 87 20 107

It is required to find the probability of the students who prefer to read non-fiction novels, given that they are in 9th grade.

That is, to find the conditional probability $P(Non-fiction| 9th\ grade)$ .

Now, $P(A|B)=\dfrac{P(A\bigcap B)}{P(B)}$

So, we get,

$P(Non-fiction| 9th\ grade)=\dfrac{(Non-fiction\bigcap 9th\ grade)}{P(9th\ grade)}\\\\P(Non-fiction| 9th\ grade)=\dfrac{8}{43}\\\\P(Non-fiction| 9th\ grade)=0.19$

<h3>Thus, the required probability is 0.19.</h3>

5 0

2 years ago

In a recent year, 31.6% of all registered doctors were female. If there were 53,000 female registered doctors that year, what wa

Naily [24]

Answer:

The total number of registered doctors was 167,722.

Step-by-step explanation:

Total number of doctors:

The total number of doctors is given by x.

31.6% of all registered doctors were female. 53,000 female doctors.

This means that:

$0.316x = 53000$

What was the total number of registered doctors?

We have to solve the above equation for x. So

$x = \frac{53000}{0.316}$

$x = 167722$

The total number of registered doctors was 167,722.

6 0

2 years ago

Tessellation that use more than one type of regular polygon are called regular tessellations

NARA [144]

Answer:

FALSE

Step-by-step explanation:

A tessellation refest to a shape that is repeated over and over again covering a plane without any gaps or overlaps. The statement is false given that regular tessellations use only one polygon. Semi-regular tessellations are created with more than one type of regular polygon.

8 0

3 years ago

Read 2 more answers

Janine has 86 hockey cards in one book and 105 hockey cards in another book. The hockey cards come in packages of 5 cards. If Ja

wel

Answer:

ur pfp... pls get help NOWWW

Step-by-step explanation:

pls stop this madness

8 0

1 year ago

Can someone pls help??

ch4aika [34]

Answer:

No. A = 32 square units B= 42 square units

Explanation:

When finding the area of composite figures, add the area of each figure.

5 0

2 years ago