Answer:
The correct option is b.
Step-by-step explanation:
The formula for standard deviation is
where, 
is mean of the data and n is number of observation.
The variance of a stock's returns can be calculated by the above formula.
Variance of stock's returns is the average value of squared deviations from the mean.
Therefore the correct option is b.
The equation for area is pi times r^2.
Here the diameter is 12, so the radius would be 6. (Diameter is twice the radius.)
Substituted this is pi times 6^2.
The area for the picnic table is about 113.097
______________________________________
The equation for circumference is 2 times pi times r.
Substitute, 2 times pi times 6.
The circumference is about 37.699
Answer: 7 shirts
Explanation: divide 77 by 9.85 you get 7.88888 repeating. You can’t have part of a shirt so she can buy 7 shirts.
Answer:
50 miles per hour
Step-by-step explanation:
To find rate, we use the rate formula:
r = rate, d = distance and t = time
Plug in distance and time using the numbers provided:
now to find rate we only need to divide 130 by 2.6 to get r = 50.
Answer:
35 divided by 4 equals 8 with 3 left over therefor they bought 8 bags of caramel popcorn and 3 bags of regular popcorn
