Lets round it to the nearest ten
A 97 ====> 100
B 118 ===> 120
C 179 ===> 180
D 5091 ==> 5090
No result yet, lets round to the nearest hindred.
A 97 ====> 100
B 118 ===> 100
C 179 ===> 180
D 5091 ==> 5100
As we can see only A give the same result when we round it to the nearest hundred and nearest ten.
Answer:
7
Step-by-step explanation:
6×4=24
52-24=28
28÷4=7
The answer to this problem is =x
Answer:
Step-by-step explanation:
The normal distribution curve standard is bell shaped having mean =0 and std devition =1.
This is symmetrical about the y axis i.e. mean. More than 99% of the area under the curve lie between z=-3 to z=3
To find the area to the right of z =0.05 is equivalent to
calculating the
Probability that Z >0.05
= P(Z>0.05)
=0.5-0.0199
=0.4801
(the sketch is attached)
Given :- 50% of all voters are democrats.
Probability that randomly selected voter will be a democrat = 0.50.
Independent event Property :- If two events A and B are independent on each other then P(A and B) = P(A) * P(B).
In this question, Vote of one person is independent on another person. Every individual's vote preference is independent.
The probability that they are both democrats
= P( first is democrat AND second is also a democrat)
=P(first is democrat) * P(second is also a democrat)
= 0.50 * 0.50 (Using above property of independent events)
= 0.25
Answer :- If two voters are randomly selected for a survey, Then the probability that they are both democrats is 0.25.
