Answer:
100
Step-by-step explanation:
because it is directly proportional so 4 times ten is 40 and 10 times 10 is 100
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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!
Step-by-step explanation:
6+x-2=2x-1
4+x=2x-1
2x-x=4+1
X=5
35+15= 50 = 1 hour
50 + 15 =65 = 2hours
65 + 15 = 80 = 3 hours
80 + 15 = 95 = 4 HOURS
hope this helps :D
Answer:
The answer is A. Check the picture attached.
Step-by-step explanation: