Answer:
(a) (0.9240, 0.956)
(b) (0.6383, 0.7017)
Step-by-step explanation:
The number of internet users involved in the survey, n = 846
The percentage of the respondents that said the internet has been good thing for them personally, 
= 94%
(a) The confidence interval of a percentage is given as follows;
The z-value for 95% confidence interval = 1.96
We get;
CI = 0.9240 ≤ ≤ 0.956 = (0.9240, 0.956)
(b) The percentage of the internet users that said the internet has directly strengthened their relationship with their families, = 67% = 0.67
The 95% confidence interval is therefore;
From which we have;
CI = 0.6383 ≤ ≤ 0.7017 = (0.6383, 0.7017)
Answer:
y = - 
(x - 1)²(x + 2)(x + 6)
Step-by-step explanation:
The roots from the graph are
x = - 6 , then factor is (x + 6)
x = - 2 , then factor is (x + 2)
x = 1 ( multiplicity 2 ) , then factor is (x - 1)² then
y = a(x - 1)²(x + 2)(x + 6) ← a is a multiplier
To find a substitute any point on the graph into the equation
Using (0, - 3 ), then
- 3 = a(- 1)²(2)(6) = 12a ( divide both sides by 12 )
- = a
Then
y = - (x - 1)²(x + 2)(x + 6)
Since 40% does not nicely go into 100% you split the 32 baskets she made. (32/2)
This means 16 baskets is 20%. Now that 20% goes nicely into 100% you multiply 16 by 5 and 20 by 5 to get 80.
The basketball player made 80 shot attempts.
