The sum of their age is "s" years? Please fix the typo. Then I might be able to help :D
The angles look like
F- angles are corresponding angles.
Corresponding angles are congruent.
Answer:
(-3.07, 11.07)
Step-by-step explanation:
Given that a sports writer wished to see if a football filled with helium travels farther, on average, than a football filled with air. To test this, the writer used eighteen adult male volunteers. These volunteers were randomly divided into two groups of nine subjects each.
Group Group One Group Two
Mean 300.00 296.00
SD 8.00 6.00
SEM 2.67 2.00
N 9 9
The mean of Group One minus Group Two equals 4.00
standard error of difference = 3.333
df = 16
t = 1.2000
Margin of error = 3.3333* t critical = 3.3333*2.121
95% confidence interval of this difference: From -3.07 to 11.07
Answer:
P(A and B) = (1/12)
Step-by-step explanation:
The two events described (rolling a die & getting a 6 and tossing a coin & the coin comes up heads), are independent events. The chances of one occurring doesn't affect/depend on the chances of the other happening.
And for independent events, mathematically, P(A and B) = P(A n B) = P(A) × P(B)
P(A) = (1/6)
P(B) = (1/2)
(We've assumed the die and the coin are fair; each sample point with an equal probability of occurring)
P(A and B) = (1/6) × (1/2) = (1/12)
There are 1,16,280 different recital programs possible.
Given: A pianist plans to play 4 pieces at a recital from her repertoire of 20 pieces and is carefully considering which song to play first, second, etc.
It means the repetition of pieces is not allowed.
When repetition is not allowed, then the number of ways to arrange n things where r things taken together is given by:-
Now, the number of different recital programs are:-
Hence, there are 1,16,280 different recital programs possible.
Learn more about probability here brainly.com/question/251701
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