Answer:
a) median = 1,148 minutes
b) IQR = 549.5
Step-by-step explanation:
Q1 = (952 + 866) / 2 = 909
Q3 = (1431 + 1486) / 2 = 1458.5
IQR = 1458.5 - 909.0 = 549.5
Answer:
Ok, so I think I may have got it right.
Step-by-step explanation:
So in each row going left to right is the following numbers
1st row: 2, 3, 4, 5
2nd row: 3, 4, 5, 6
3rd row: 4, 5, 6, 7
4th row: 5, 6, 7, 8
b) 1/16
c) 6/16
I'm not exactly sure if I got everything right, but I hope this helps :)
"<span>The sum of the squares of the digits is 26"
</span>10t + u = 26 ---->(1)
<span>"If the number is decreased by the number with its digits reversed, the result is 36"
u - 10t =36 -----> (2)
By subtracting the equation we can find t.
</span> u+10t = 26)<span>
-(u-10t=36)</span>
______________
0u +20t = 26 -36
---> 20t = -10
t= -10/20
t= -1/2
Inserting value t in (1)
10t + u = 26
10(-1/2) + u= 26
-5+u=26
u= 26+5 = 31
<span>
Using u and t in the original expression 10t+u express a positive number
10t+u
= 10(-1/2) +u
= -5 + 31
= 26
----> Proves this statement is true
</span>"The sum of the squares of the digits is 26"
10t + u = 26 <span>
</span>
