Answer: No, it does not appear to be normal.
A normal distribution has very specific characteristics:
- it is bell-shaped: it starts at a low value, then it increases to a maximum value, then it decreases to a low value again;
- it is symmetric;
- it is single-peaked.
The data table is not complete, but it is enough to give an answer.
Let's see how the frequencies change: we have 2, 0, 4, 12,...
The frequencies start from a low value, but at first, they decrease to a lower value right before increasing to a maximum value.
We don't know how they change after the maximum value, but from the first part of the curve, we can see that it is not bell-shaped, because it decreases before increasing. Probably, it won't be symmetric either.
Hence, we can say that using a strict interpretation of the relevant criteria the frequency distribution does not appear to be normal.
Answer:

Step-by-step explanation:
The given equation is
.
We cube both sides of this equation to obtain;
.
This implies that;

We group similar terms to obtain;

We simplify the right hand side of the equation to obtain;

Therefore x=-72 is the solution of the given equation.
Answer:
you can go 980 miles in 10 hours, the speed rate is 98mph
Answer:
a. On the 13th day
b. 2,451 players we’re sold on that day
Step-by-step explanation:
a. The day in which the company sold the same number of players can be calculated by equating the values of y that we have ;
y = 191x-32 and y = -x^2 + 200x + 20
Equating both, we have;
191x-32 = -x^2 + 200x + 20
x^2 -200x + 191x-20-32 = 0
x^2-9x-52 = 0
x^2-13x + 4x -52 = 0
x(x-13)+4(x-13) = 0
(x-13)(x+4) = 0
x = 13 or -4
as days cannot be negative we choose only x = 13
This means the company sold equal numbers of players on the 13th day
b. To get the number of players sold on that day, we choose any of the y equation and substitute x = 13
Thus, we have for y = 191x -32; 191(13) - 32 = 2,451 players