Answer:
if on graph the answer is 40 percent
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
m=
Answer:
X = 13 ; Y = 16
Median Y > Median X
Battery Y lasts longer and hence better than Battery X.
Step-by-step explanation:
From the box plot, median value is the point marked by the vertical line in between the box located between the whiskers.
Median :
Brand X = 13
Brand Y = 16
This median value depicts that, average battery life of brand X batteries is 13 hours while that of brand Y batteries is 16 hours ; Median value of Y is greater Than median value of X ;
This means Brand Y batteries lasts longer on average than Brand X batteries.
Answer:
( a ) Probability that the test comes back negative for all four people = .9723
( b ) Probability that t he test comes back positive for at least one of the four people = .0277
Step-by-step explanation:
Given
The probability of the test will accurately come back negative if the antibody is not present = 99.1 = .991
The probability of the test will accurately come back positive if the antibody is not present = .009
Suppose the test is given to four randomly selected people who do not have the antibody .
( a ) Probability that the test comes back negative for all four people =
= = .9723
If we say E = P( all 4 test are negative) or we say E = P( not of the all 4 test are positive)
P( at least one of the 4 test are positive) = 1 - P( not of the all 4 test are positive) = 1 - P( all 4 test are negative)
( b ) Probability that t he test comes back positive for at least one of the four people = 1 - P( all 4 test are negative)
= 1 - .9723
= .0277
To solve: 9 + 2 + 42 × 5 − 1
=9+2+(42×5)-1
=9+2-1+(42×5)
=10+210
=220
To solve: (9 + 2) + 42 × (5 − 1)
=11+(42×4)
=179
One of the thing we should note is that multiplication always comes first, or we might get the wrong answer.
Hope it helps!