I can’t seem to look at the bottom two answers and the two ( A and B) are not correct. So you’re left with either C or D
Cos-1(0.5299) => B=58.00 degree
I think it’s b cause if u do that or that u get that
Answer: see below
Step-by-step explanation:
(i)
200/2 = 100
Find 100 on cumulative frequency and the correspinding time: 14 minutes. So the answer is 14 minutes.
(ii)
First, find the lower quartile —> 200/4 = 50
Upper quartile —> 200/(3/4) = 150
Find the difference: 150 - 50 = 100
So the interquartile range is 100
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F(1) = 2
f(2)= -1
f(3)= -4
f(4)= -7