Answer:
0.1587
Step-by-step explanation:
Given the following :
Mean (m) of distribution = 64 inches
Standard deviation (sd) of distribution = 2 inches
Probability that a randomly selected woman is taller than 66 inches
For a normal distribution :
Z - score = (x - mean) / standard deviation
Where x = 66
P(X > 66) = P( Z > (66 - 64) / 2)
P(X > 66) = P(Z > (2 /2)
P(X > 66) = P(Z > 1)
P(Z > 1) = 1 - P(Z ≤ 1)
P(Z ≤ 1) = 0.8413 ( from z distribution table)
1 - P(Z ≤ 1) = 1 - 0.8413
= 0.1587
Answer:
Portion of walking in degrees = 72°
Step-by-step explanation:
The question is incomplete as the diagram is not shown in the question. I have attached the full question below. Consult it to understand the solution better
First calculate the percentage of walking from a total of all activities.
Percentage of walking = 10/50 · 100%
Percentage of walking = 20%
It means the portion of the circle(pie chart) for walking should be equal to 20% of the whole circle.
We know that the whole circle is equals to 360°
Circle = 360°
We need to calculate 20% of 360°, which will represent the portion of walking in degrees.
Portion of walking in degrees = 20/100 · 360°
Portion of walking in degrees = 72°
Answer:
1) 14080
2) 1408
3) 17036.80
Step-by-step explanation:
It is given that
Principal= 12800
Rate of interest =10% p.a
(i) We know that Interest for the first year=
(12800×10×1)/100
= 1280
So the sum due at the end of first year= 12800+1280
= 14080
(ii) Principal for second year = 14080
So the interest for the second year
=(14080×10×1)/100
=1408
iii) We know that Sum due at the end of second year
= 14080+1408
=15488
Here
Principal for third year= 15488
Interest for the third year= (15488×10×1)/100
=1548.80
So the total amount due to him at the end of third year= 15488+1548.80
= 17036.80
Answer:
y=-9/2x plus 4
Step-by-step explanation:
y=ax plus b
Use points from the task.
4=0x plus b
so b=4
-5=-2a plus 4
-2a = -9
a = -9/2
y=-9/2x plus 4