The shape of the distribution, is symmetric, is the best description of statistics about scores.
<h3 /><h3>What is standard deviation ?</h3>
The standard deviation is the positive square root of the variance of this data set. Variance of a data set is the sum of squared differences of the data values from its mean to the total count of data values.
The given data in the problem is;
Mean = 78%
Standard deviation = 4%
Min = 64
Median = 78
Q1 = 72
Q3 = 84
Max = 99
The condition for the symmetric distribution is found as;
From the data we have;
So that , .
Hence, the condition of symmetry is followed.
To learn more about the symmetry, refer to the link;l
brainly.com/question/15970176
#SPJ2
Answer:
It’s B. (y=√x-5 - 10)
Step-by-step explanation:
I used a math app soooo yeah— hope this helps ya’ll.
You have a bucket, which is 1 gallon big.
So, to mix cleaner and water, you have to divide the bucket´s capacity into 4.
In this case, it´s 1 quart of the cleaner, as 1 gallon is 4 quarts. 4 quarts/ 4 quarts = 1 quart.
Have a very nice day :D
Answer:
a) see attachment
b) negative values for miles or gallons are not possible
c) 45 miles
Step-by-step explanation:
<h3>a)</h3>
See the attachment for a graph
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<h3>b)</h3>
Graphing in the first quadrant is all that is necessary, because the number of gallons and the number of miles cannot be negative.
__
<h3>c)</h3>
Use 2.5 for g and evaluate:
d = 18(2.5) = 45
Rick can drive 45 miles on 2.5 gallons of gas.
Answer:
$117,398.71
Step-by-step explanation:
Lets use the compound interest formula provided to solve this:
<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
<em />
First, change 4.5% into a decimal:
4.5% -> 
-> 0.045
Since the interest is compounded quarterly, we will use 4 for n. Lets plug in the values now:
The account balance after 15 years will be $117,398.71
