So first you have to find the median, to do this you use the formula (n+1)/2 with n being how many numbers there are.
As there are 4 numbers we can substitute it into the formula to make (4+1)/2 which is 2.5
Then you find the 2nd place and the 3rd place (which are 5 and 8) and find exactly the middle of them which is 6.5 (the median)
To find the lower quartile we take the 2.5 from earlier and divide it by 2 to make 1.25 so we find where that place is in the number. 4 is the first place and then we find what 1/4 is and add that on to make 4.25 which is the lower quartile.
Then you do 2.5+1.25 to find the upper quartile to make 3.75 so we find where that is in the numbers which is in-between 8 and 13 so it will be 8+1.22 to make 9.22
So to find the interquartile range you do the upper quartile takeaway the lower quartile so 9.22-4.25 which is 4.97 and that is the answer
Answer:
A. Ling
Step-by-step explanation:
we want to find the hourly earning
Ling earns $108 for working 9 hours.
hourly earnings is
108/9=$12 per hour
Rachel earns $77 for working 7 hours.
hourly earnings is
77/7=$11 per hour
Ruben earns $92 for working 8 hours.
hourly earnings is
92/8=$11.5 per hour
Patrick earns $115 for working 10 hours.
hourly earnings is
115/10=$11.5 per hour
Answer:
Step-by-step explanation:
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Answer:
22
Step-by-step explanation:
f. 24-(5-9+18)÷7
24-(14)÷ 7
24 - 2 = 22
hope it helps.....
