Answer:
A
The value is 
B
The value is 
Step-by-step explanation:
From the question we are told that
The population mean is 
The standard deviation is 
The sample size is n = 25
Generally the probability that a boy born full term in the US weighs less than 7 lbs is mathematically represented as


=> 
From the z table the area under the normal curve to the left corresponding to -0.6364 is

=> 
Generally the standard error of mean is mathematically represented as

=> 
=> 
Generally the probability that the average weight of 25 baby boys born in a particular hospital have an average weight less than 7 lbs is mathematically represented as

=> 
From the z table the area under the normal curve to the left corresponding to -3.1818 is
=> 
=> 
Answer:
1.6022x 10-19
Step-by-step explanation:
1.6022x 10-19 then simplifies into 16.022 because of the 10, and then the final answer is -2.978

Fiona and Pip win some money and share it in the ratio 6:1. Fiona gets £35 more than Pip. How much did they get altogether?


Let Pip get be x and fiona get be x+35
Ratio = 6:1





Answer:
at first put the value of X
after that do the equation.
Step-by-step explanation:
hope it will help you
-10= 7X - 42
-10 + 42 = 7X
32 = 7X
X = 32/7
X = 4.57