Answer:
60.270267
Step-by-step explanation:
69.99*0.18=13.3982
69.99-13.3982=56.5918
56.5918*0.065=3.678467
56.5918+3.678467=60.270267
Answer:
D. a line graph
Step-by-step explanation:
Hello there! 106,250 is 85% of a number, which is represented by z. To find the value of z, we can write and solve a proportion. Set it up like this:
106,250/z = 85/100
This is because 106,250 is part of a whole, and 85% is a part of 100%. Let's cross multiply the values. 106,250 * 100 is 10,625,000. 85 * z is 85z. That simplifies to 10,625,000 = 85z. Now, divide each side by 85 to isolate the z. 85z/85 cancels out. 10,625,000/85 is 125,000. There. z = 125,000.
The value of the Mean & Standard deviation is 1.30 and 1.18.
According to the statement
we have a given that the random variable x represents the number of computers that families have along with the corresponding probabilities.
And we have to find the mean and standard deviation from the given data which is related to the probabilities values
So, according to the given data
The formula to compute the mean is:
Mean = summation [x*p(x)]
Compute the mean as follows:
Mean = summation [x*p(x)]
Mean = summation [0*0.49 + 1* 0.05 + 2*0.32 + 3*0.07 + 4*0.07]
Mean = 0 +0.05 + 0.64 + 0.21 + 0.28
Mean = 1.18
The mean of the random variable x is 1.18.
And after calculating the variance from the formula get
The value of standard deviation is 1.30
So, The value of the Mean & Standard deviation is 1.30 and 1.18.
Learn more about mean and standard deviation here brainly.com/question/14650840
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