Question 3 In a survey of 52,249 women were asked how many children they had. The results were as follows.
Number
of
khildren
10
3
4
15
Is or more
Number of
women
12.774 8,693
12,032
8,574
4,903
2,661
1,049
1668
89
Find the following and round answers to three decimal places:
a) P(sampled woman has exactly 3 children)? 0.164
b) P(Sampled woman has more than 4 children)? 0.084
c) What is the probabability a woman in the survey has more than six children? 0.014
d) What is the probabability a woman in the survey has no children? 0.245
Is this unusual? no
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solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

h= 12 inches

step-by-step explanation:

english maybe i can ..