Answer:
gotta be C
Step-by-step explanation:
To find the variance, you must square the standard deviation, or <span>σ.
</span>
<span>σ = 23.9
The variance is
</span>
<span>σ²= 23.9² = 571.21
</span>
Step-by-step explanation:
Hey there!
The equation is;
Shifting "2x" to left side and "2" to right side.
Simplify them to get answer.
Therefore the value of x is -7.
<u>Check</u><u>;</u>
3 × -7 + 2 = 2 × -7 -5
-19 = -19 ( True ).
So, your answer is option B.
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em>
a. P(odd sum)
OK, each is drawing from a pile of 2 even cards and one odd, so have a 2/3 chance of picking even and a 1/3 chance of picking odd.
1/3 × 1/3 = 1/9 probability of odd+odd = even
1/3 × 2/3 = 2/9 prob of odd + even = odd
2/3 × 1/3 = 2/9 prob of even + odd = odd
2/3 × 2/3 = 4/9 prob of even+even = even
Total odd: 2/9+2/9 = 4/9
Answer: a) 4/9
b. P(sum < 11)
Let's just work out all the possibilities and count.
1st 2nd sum
4 4 8
4 5 9
4 6 10
5 4 9
5 5 10
5 6 11
6 4 10
6 5 11
6 6 12
I count 6 of 9 are less than 11, so P=6/9 or
Answer: b) 2/3
Answer:
$1.61
Step-by-step explanation: