Answer:
68
Step-by-step explanation:
24+24=48
=68
10+10=20
Answer:
b < = 65 <u><</u>
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given data:

standard deviation is 
As distribution is normal in shape and values are symmetrical
The standard deviation rule says that 95% of observation lies between the second standard deviation of the mean
so, approximately only 5% of observation lies outside the interval and normal shape is symmetric. hence approximately 0.15% of observation lies above the interval


almost 0.15% of students spent more amount is 529
Answer:
Step-by-step explanation:
w=7b/7
w/7=b