If Jimmy's new cell cost him $49.99 with a 75% discount, then $49.99 is <span>100%−75%=25%</span><span> of the original price.
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The original price of the cell phone was <span>$199.96</span><span>.</span>
Answer:
0.31
Step-by-step explanation:
% conservatives = 30 ; voted = 65%
% Liberals = 50 ; voted = 82%
% Independents = 20 ; voted = 50%
If a person in the city is selected at random and it is learned that she did not vote in the last election, what is the probability that she is a liberal
Number that did not vote :
% conservative × (1 - voted) + % Liberals × (1 - voted) + % conservatives × ( 1- voted)
(30% × 0.35) + (50% × 0.18) + (20% × 0.5)
(0.3 × 0.35) + (0.5 × 0.18) + (0.2 × 0.5)
= 0.105 + 0.09 + 0.1 = 0.295
Hence, probability that a person chosen at random did not vote and she's a liberal :
P = liberal who did not vote / total who did not vote
P = (0.5 × 0.18) / 0.295
P = 0.09 / 0.295
= 0.30508
= 0.31
Answer:
Explanation:
1).
TS = UR
But TS = 18 and UR = 6x
18 = 6x
18/6 = x
3 = x
Answer:
top right bottom left
Step-by-step explanation:
Answer:
Value of 26.93 will be exceeded 85% of the time.
Step-by-step explanation:
We are given that a random variable is normally distributed with a mean of 25 and a standard deviation of 5.
Let X = a random variable
So, X ~ N()
The z score probability distribution is given by;
Z = ~ N(0,1)
where, = population mean
= standard deviation
Now, we have to find that value which will be exceeded 85% of the time, i.e.;
P(X > ) = 0.85
1 - P(X ) = 0.85
P(X ) = 0.15
P( ) = 0.15
P(Z ) = 0.15
Now, in the z table the critical value of whose less than area is 0.15 is given as 0.3853, i.e;
= 0.3853
= 25 + 1.9265 = 26.93
Therefore, value of 26.93 will be exceeded 85% of the time.