Answer:
Step-by-step explanation:
Let's base this on 100%, or 100 cars, which is 100% of the cars. If 1/4 of the 100 cars are sports cars, then we have
25 sports cars and
75 sedans
If 1/5 of the total cars are red, 20 of the 100 cars are red (since 1/5 is 20).
If 1/3 of the sports cars, of which we have 25, are red, then 25/3 of the sports cars are red.
Since we have 20 total red cars and 25/3 of them are sports cars, then the rest of them must be red sedans:
Total red cars - red sports cars = red sedans
which simplifies to
Answer:
x = 1
Step-by-step explanation:
x = ln (e)
We know that the natural log and the exponential function are opposites
They cancel out and leave 1
x =1
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:
The area of the larger is 36 units^2
Step-by-step explanation:
The scale factor is 6/3 = 2
When we work with areas, it is scale factor squared
scale factor ^2 = area of larger / area of smaller
2^2 = area of larger / 9
4 =area of larger / 9
Multiply each side by 9
4*9 = 36
The area of the larger is 36 units^2
