Answer:
a) The probability that 71 of 150 will prefer boy child is 71/150 or 0.47
b) The result contradicts the poll actual percentage is 47.33% which is 3.33% more than the poll predicted
Step-by-step explanation:
If 71 out of 150 prefer boy child
The probability that the 71 will prefer boy child is
= 71/150
The actual percentage is
(71/150)*100%
= 47.33%
This contradicts the poll as this is more than the poll predicted. That means Less than 71 of 150 actually preferred boy child.
Answer:
The two populations living habitats are different. Also they are only similar not the same. Although the physical features may look the same, the actual species may be totally different. :)
Step-by-step explanation:
Area = base x height /2
Base =26.5
Height =40
26.5 x 40 /2 = 530
Answer:
P =
units
A = 24.5 ![unit^{2}](https://tex.z-dn.net/?f=unit%5E%7B2%7D)
Step-by-step explanation:
Length of one side
sin
= ![\frac{x}{7}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B7%7D)
7sin
= x
7(
)= x
= x
Perimeter = 4(
) = ![\frac{28\sqrt{2} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B28%5Csqrt%7B2%7D%20%7D%7B2%7D)
Area = (
)(
) =
=24.5