At first it was 100%. When it was reduced by 85%, it became 25%. The 25% represents 120 ml. So 100% would be (120/25) × 100 = 480 ml.
Answer:
112 or 113
Step-by-step explanation:
75%=0.75
450*0.75=337.5
450-337.5=112.5
Or if 75% ride then 25% do not ride the bus.
450*0.25=112.5
Presumably you would round to 113
As an improper fraction, it is
.
Answer:
average
Step-by-step explanation:
The midpoint is always the average or middle of the line. So here it would be the average of the two x endpoints.
Answer:
Test statistic = 3.863
Step-by-step explanation:
We are told that most adults would erase all of their personal information online if they could. Since the word "most" is used, it means more than 50% or 50 percent.
So, p_o = 0.5
Also, we are told that 58 % of them would erase all of their personal information online if they could.
Thus, p^ = 0.58
Number of randomly selected adults; n = 583
The test statistic formula for hypothesis test for proportion is given by:
z = (p^ - p_o)/[√[p_o(1 - p_o)/n]
Plugging in the relevant values, we have;
z = (0.58 - 0.5)/[√[0.5(1 - 0.5)/583]
z = 0.08/0.02070788416
z = 3.863
