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Hitman42 [59]
4 years ago
7

I NEED HELP ASAP!! will be willing to mark you brainliest!

Mathematics
1 answer:
Softa [21]4 years ago
5 0

Answer:

8/75

Step-by-step explanation:

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Mr. Daten gave his class a 20-point quiz. The results of that quiz are shown below.
mixer [17]
To evaluate the data set shown we need to rearrange the sets from smallest to the largest
5,7,10,10,12,12,12,13,15,17,18,18,18,19,20,20
thus the:
first quarter, Q1 will be:
(10+7)/2
17/2
=8.5

second, Median
(13+15)/2
=28/2
=14

Third quarter, Q3:
(19+20)/2
=39/2
=19.5

Thus you can use the values obtained to mark the number line.


6 0
3 years ago
What is the following product? Assume y > 0
alukav5142 [94]
= 6y^2√10 + 12√5y

answer is A. first one

hope it helps
3 0
4 years ago
Read 2 more answers
What is the LCM of 25 and 15
valina [46]
75 is the lowest common multiple of both
7 0
4 years ago
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A school newspaper reporter decides to randomly survey 17 students to see if they will attend Tet (Vietnamese New Year) festivit
Leni [432]

There is a typing mistake in part (d) of the question. Original question states that total student are 17. In part (d) it asks out of 12 which I think is a mistake as total is 17. Therefore, I am finding the answers with total students as 17. In case if the total is 12 then by just replacing 17 with 12 we can find the answer.

 

Answer:

All the answers and explanations are given below.

Step-by-step explanation:

(a)

The random variable X will be defined as the number of students who will attend the Tet (Vietnamese New Year) festivities this year.

(b)

As X is the number of students so it can take any value from 0 to 17. This means that when X = 0, 0 student will attend the Tet (Vietnamese New Year) festivities this year. Similarly if X = 17, all 17 students will attend the Tet (Vietnamese New Year) festivities this year. It can only take whole number values because its the  number of students.

(c)

X follows Binomial distribution with probability of success = 23% (success defined as attending the festivities).

n = 17 (total number of students)

p = 23% = 0.23 (probability of success)

X ~ Binomial (17, 0.23)

(d)

The number can be found out by  n*p

n = 17

p = 0.23

np =  3.91

(e)

Using binomial cdf function in the calculator or any Binomial Probability Calculator  online we can find

P(X ≤ 4) = 0.65

<em>This means at most the value can be 4. So the we need to find probability of less than or equal to 4.</em>

(f)

To find probability of more than 2 students  we first find probability of less than and equal to 2 students and then subtract it from the total probability which is 1.

P(X ≤ 2) = 0.214

P(X>2) = 1 - 0.214

P(X>2) =  0.786

8 0
3 years ago
A rectangle is 30 cm long and 10 cm wide. What's the ratio of the rectangle's length to its width?
Veseljchak [2.6K]

Answer:

3: 1

Step-by-step explanation:

hope this helps

6 0
2 years ago
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