Answer:a) 3 amp
b) 3 volts
Step-by-step explanation:
As the relationship is given by
V= I*R
a)
I=240/80=3amp
b)
V= 0.6*5 = 3 volts
Rise indicates going up or down on the grid
Answer:
chisquare = 31.667
degree of freedom = 2
Step-by-step explanation:
Formula for chisquare test = (O-E)²/E
total number observations= 60 + 25 + 15 = 100
Estimated E,
80% x 100 = 80
15%x100 = 15
5% x 100 = 5
chisquare =

= 5 + 6.67 + 20
= 31.667
from the calculation above the value of the chisquare statistic = 31.67
the degree of freedom is the number of samples in the test n - 1
= 3-1
= 2
I have solve this question also in a tabular form to aid understanding in the file i uploaded.
thank you and good luck!
Take 124,000 books and multiply it by the percentage of children fiction which is 23%
124,000 x 0.23 = 28,520 children fiction books