Answer:
5
Step-by-step explanation:
we just figure it out by making an equation
3x = 6th graders
4x = 7th graders
35 = total
so
3x + 4x = 35
7x = 35
x = 5
sooooo
3(5)= 15 = 6th graders
4(5) = 20 = 7th graders
SOOOO
20-15 = 5
The product of 9 and a to the power of 2
Answer:
Step-by-step explanation:
The closer the line of best fit is to the points the more accurate it is. The correlation coefficient gives a numerical rank, where 1 is a perfect fit and the closer to 0 it is the less accurate it is.
I need the values of the line at the same x values as the scatterplot points. After you have that take the difference of the value of the line of best fit and the corresponding scatterpoint. if the point is higher than the line then the resiual will be negative and if the point is lower the residual will be positive. Do you have the equation of the line of best fit?
Answer:
He hit the target <u>21 times.</u>
Step-by-step explanation:
7 - 1 = 6 - 1.5 = 4.5 - 2 = 2.5 - 2.5 = 0 (4 penalties total)
25 - 4 = <u>21 hits</u>
Answer: 20%
Step-by-step explanation:
The 150 students in the marching band and 30 of the students play the trumpet. To get the percentage of students that play the trumpet, we divide 30 by 150 and then multiply by 100. This can be written as:
= 30/150 × 100
= 0.2 × 100
= 20%
The percentage of students that play the trumpet is 20%