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Alexxandr [17]
2 years ago
9

Cd an anyone help me pls

Mathematics
1 answer:
Burka [1]2 years ago
3 0

Answer:

ITS FALSE

CAN I PLEASE GET BRAINLIEST IM TRYING TO RANK UP THANKSS <3

Step-by-step explanation:

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Certify Completion Icon Tries remaining:2 A town recently dismissed 10 employees in order to meet their new budget reductions. T
anyanavicka [17]

Answer:

0.055 = 5.5% probability that exactly 5 employees were over 50.

Step-by-step explanation:

The employees are removed from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

7 + 18 = 25 employees, which means that N = 25

7 over 50, which means that k = 7

10 dismissed, which means that n = 10

What is the probability that exactly 5 employees were over 50?

This is P(X = 5). So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 5) = h(5,25,10,7) = \frac{C_{7,5}*C_{18,5}}{C_{25,10}} = 0.055

0.055 = 5.5% probability that exactly 5 employees were over 50.

5 0
2 years ago
The sum of three consecutive odd numbers is 93. What is the smallest of three numbers ?
Julli [10]

Answer:

Step-by-step explanation: it doesn't matter if it says even or odd it's the same formula

Because think if you start with 1 to get 3 you add 2

If you start with 2 to get the next even number you add 2

So it's X+ (X+2)+ (X+4)=93

X is the first # X+2 is the next # X+4 is the 3rd number if you want to check add the numbers to make sure they add up to 93

The smallest of course is X

4 0
3 years ago
Does this scatter plot show a positive trend, a negative trend, or no trend?​
Jobisdone [24]
It shows a negative trend
5 0
2 years ago
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If you will represent yourselves as measure of central tendency(mean, median and mode) What will that be and why? ​
Drupady [299]
I would definitely be mean because I’m so average and basic lol
6 0
2 years ago
If it takes Doug 40 mins to clean his home and Frankie 50 mins. How long will it take if they work together?
lora16 [44]
Find the average value:
40 minutes + 50 minutes = 90 minutes
90 minutes/2 = 45 minutes
Together it will take them 45 minutes to clean the house
8 0
3 years ago
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