Answer:
The height of the hill is 131ft
See explanation in the photo
Answer:45,6
Step-by-step explanation:
Because idk
Answer:4128 and 4293
Step-by-step explanation:
8421-165=8256
8256/2=4128
4128+165=4293
4293+4128=8421
Answer:
153.586 close to 154 students
Step-by-step explanation:
mean=61
standard deviation =10
sample 450 students , x between 61 and 71
(x-mean)/deviation for score 61 and 71
61-61/10=0
71-61/10=1
the z-scores is between 0 and 1 ( use calculator)
the percentage is 0.3413 close to 34%
number of students that score between 61 and 71=
450*0.3413= 153.586 close to 154 students
