Answer: a) The average of this set of numbers is 1.98 s. b) the standard deviation is 0.02 s.
Step-by-step explanation: The average is calculated by adding all numbers found in the experiment divided by the number of values. 
The standard deviation is given by the square root of the squared sum of the difference between each number and the average divided by the total number of values. For instance, std deviation = 
and that is done with all 11 terms of data minus the average to find the standard deviation.
In excel, the average of a certain set of numbers (displayed in cells A1 to A5) can be found by the commands =average(A1:A5). The standard deviation can be found by the commands =stdedv.p(A1:A5) in which p is the population. You can decrease decimals by clicking on the icon displayed in the Ribbon.
What do you need help with?
Make x the subject means you need to solve for x
y = ax^2 solve for x
divide both side by a
y/a = ax^2/a
simplify
y/a = x^2
so
x = square root (y/a)
Answer:
Lyle and Kyle shot 18 baskets each.
Cliff shot 6 baskets.
Step-by-step explanation:
To figure this out, you have to play around with how many shots Cliff made. You can just plug in reasonable numbers until Lyle and Kyle's baskets match.
If Lyle has to shoot 3 times more than Cliff, you multiply 6 x 3 to get 18.
If Kyle shoots 12 more than Cliff, you add 6 + 12 to get 18.
You know you did it right because in the problem it says Lyle's and Kyle's number of shots are equal.
