Answer: 151
Step-by-step explanation:
When the prior estimate of population proportion is available , then the formula for sample size:
, where p= prior estimate of population proportion
z*= critical-value.
E= Margin of error.
Let p be the proportion of of girls "wait for their missionary".
p = 11% =0.11
E= ± 0.03
The critical z-value corresponding to 90% confidence level = z*=1.645 [using z-table ]
Substitute all the values in the above formula , we get
Required sample size :
[Rounded to next integer.]
Thus, the number of observations he needs in his sample = 151
Answer:
11 pounds
Step-by-step explanation:
16 ounces equal a pound so you need to do 176 / 16 = 11
The exponential function to model the quail population is 910*(1.2)^t
Concept: An exponential function is a mathematical function denoted f(x)=\exp or e^{x}. Unless otherwise stated, the term generally refers to a positive function of a real variable, although it may be extended to complex numbers or generalized to other mathematical objects such as matrices or Lie algebras.
Given data
Initial population= 910 quail
Rate= 20%
Now using the model below:
A= P(1+r)^t
r= 0.2
A= 910(1+0.2)^t
A= 910*(1.2)^t
Hence the expression to model the population is 910*(1.2)^t
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Answer:
B:yes
Explanation:
Label the point 3 would be x and 9 would be y. Substitute these points into the equation were it corresponds.
Y= 2x+3
9=2(3)+3
9=6+3
9=9
Y=4x-3
9=4(3)-3
9=12-3
9=9
Hope this helps!!