The probability of the first pick to be a boy is 10/25.
Let S be the sample space and E be the event of selecting 1 girl and 2 boys.
n(S)=number of ways selecting students of 25.
=²⁵C₃
=25·24·23/3·2·1
=2300
n(E)=(¹⁰C₁·¹⁵C₂)
=[10·(15·14)/2·1
=10500
P(E)=n(E)/n(S)=1050/2300=21/46
Answer:
70
Step-by-step explanation:
Area for a rhombus: A=(pq)/2
p: diagonal 1
q: diagonal 2
Plug in your values:
A=(10*14)/2
=70
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Answer:
C. 5
Step-by-step explanation:
Find the factors of 10 and 35
Factors of 10:
1,2, 5, 10
Factors of 35:
1,5,7, 35
The greatest common factor between both is 5, so C is correct
Answer:
The answer is D) ±2.101
Step-by-step explanation:
For a two-tailed test
n=18
a=0.05
a/2=0.05/2=0.025
1-a/2=1-0.025=0.975
From the t-distribution table, 0.975 along 18=2.101
Hence, the answer is ±2.101
