Answer: C) 50% of the students scored below 70%
<u>Step-by-step explanation:</u>
Mean is the average. To find the mean (aka average) you add up all of the scores and divide by the number of tests.
B) The mean can be 70 without any test scoring 70% so B is not true.
A) Since B is not true, then A is not a valid option.
D) We don't know any of the other data so don't know if it is skewed left, skewed right, or normal. Therefore, option D is not true.
C) If the average is 70%, then half received grades above that score and half received grades below that score. So, option C is TRUE!
H is correct one!!
<u>By Pythagoras </u><u>theorem</u>
H² = B² + A²
H= 9
B= x
A = 3
<u>Now</u>
9² = 3² + x²
9² - 3² = x²
72 = x²
√72 = x
Answer:
x
y
−
2
2
−
1
0.5
0
0
1
0.5
2
2
Step-by-step explanation:
I always find 10% of an amount , in your case I would then times the answer by 6. Half 10% and add them together- 10%=? 5%=? 60%=? 65%=?
Answer:
2y meters
Step-by-step explanation:
The first x meters are cancelled with the last x meters because after turning right two times they walk in the opposite direction that each of them started to walk.
The y meters each of them walk are also in the opposite direction, so given that each of them walked y meters, the distance between them is 2y meters.
