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umka2103 [35]
3 years ago
5

I NEED HELP ASAP!!!!This table shows how many male and female students attended two different movies. What is the probability th

at a randomly chosen person from this group an action movie?

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

answer B

0.25

Step-by-step explanation:

Luden [163]3 years ago
4 0

Answer:

Brainliest!

Step-by-step explanation:

99/479 = 0.21

D

No of female students =250 and no of female students who attended an action movie is row 2 column 1 entry namely 99

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Sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and i
Naddik [55]
We know that
2l + 2w = 24

And:
l = 3w

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3 0
3 years ago
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On the assembly line it takes 2 ½ minutes to complete task one, 3 minutes 10 seconds to complete task two and 1 minute to comple
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5. Consider the diagram below. Solve for x.
mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The number of tickets purchased by an individual for Beckham College's holiday music festival is a uniformly distributed random
Zanzabum

1) Mean: 6.5

2) Standard deviation: 3.2

Step-by-step explanation:

1)

A uniform random distribution is the distribution of a variable that can assume n different values, and each of these values is equally likely to occur.

This means that the probability of occurring of each of these values is the same:

p(x_1)=p(x_2)=...=p(x_n)

For a uniform random distribution, the mean of the distribution is simply equal to the median value of the distribution, which is exactly at the center of the distribution itself. It can be calculated as

\bar x = \frac{1}{2}(a+b)

where

a is the lowest value of the distribution

b is the highest value of the distribution

Here the distribution consists of all values ranging from 1 to 12, so:

a = 1

b = 12

Therefore the mean value is

\bar x=\frac{1}{2}(1+12)=6.5

2)

For a uniform random distribution, it can be dimostrated that the variance of the distribution is

\sigma^2 = \frac{1}{12}(b-a)^2

For the distribution in this problem, we have:

a = 1

b = 12

Therefore the variance is

\sigma^2 = \frac{1}{12}(12-1)^2=10.08

The standard deviation is the square root of the variance, therefore for this distribution it is:

\sqrt{\sigma^2}=\sqrt{10.08}=3.2

Learn more about mean and standard deviation:

brainly.com/question/6073431

brainly.com/question/8799684

brainly.com/question/4625002

#LearnwithBrainly

3 0
3 years ago
Help me please !!!! I need to make sure I am correct with my thinking
Lana71 [14]
1.  Use the Pythagoras theorem
13^2 = x^2 + 5^2
solve for x and youll get the height of the roof.

2.  let x = length of the rpoe)-

x^2 = 9^2 + 12^2

3. Pythagoras again 
20^2 = x^2 + 12^2
7 0
3 years ago
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