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IrinaK [193]
3 years ago
13

The ________ of two events X and Y is another event that consists of the sample space outcomes belonging to either event X or ev

ent Y or both events X and Y.
Mathematics
1 answer:
sineoko [7]3 years ago
5 0

Answer: Union

i hope its not to late, and please mark me brainlest.

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Solve system of equation 4b-2d=5, -2b+d=1
Fed [463]

Answer:

no solution

Step-by-step explanation:

3 0
3 years ago
Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per mi
miss Akunina [59]

Answer:

Mean = 0, Standard deviation = 1

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 77.5 beats per minute

Standard Deviation, σ = 11.6 beats per minute

We are given that the distribution of pulse rates of women is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Putting the values, we get,

z_{score} = \displaystyle\frac{x-77.5}{11.6}

After, the standardization, that is conversion of all pulse rates of women to z scores, the mean of the distribution is 0 and standard deviation is 1.

Mean = 0, Standard deviation = 1

7 0
2 years ago
Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
MrMuchimi

Answer:

divide the 13 motorcycles by the total number of vehicles  and then multiply by 100%

43 cars

Step-by-step explanation:

Q3

To find the percent of motorcycles in traffic

divide the number of motorcycles by the total number of vehicles and then multiply by 100%

Q4

Mode means most often.  In a histogram, it is the tallest column.  It is the first column, which looks like 43 cars

3 0
3 years ago
25 points!! Which table shows 4 points on the line that passes through the point (–1,5) and has the same slope as the line 2x+3y
mylen [45]
It is the third one hope this helped
5 0
3 years ago
What is the value of -4D^2+15D^2÷5 for D=1
lutik1710 [3]

Plug in D:

-4(1)^2 + 15(1)^2/5

-4 + 15 / 5

-4 + 3 = -1

6 0
2 years ago
Read 2 more answers
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