Answer:
0.8340
Step-by-step explanation:
The aim of this question is to find the probability that the student makes it to the second class prior to when the lecture commences.
Provided that A, B, and C are independent of each other from the full complete question.
Then; we want P(A + C < B)
So A 
N (2, 1.5)
B N (10, 1)
C N (6, 1)
P(A + C - B < 0)
Since they are normally distributed( i.e. A + C - B)
Then;
E(A + C -B) = E(A) + E(C) - (B)
E(A + C -B) = 2 - 10 + 6
E(A + C -B) = -2
Var(A+C -B) = Var(A) + Var (B) + Var (C)
Var(A + C -B) = (1.5)² + (1)² + (1)²
Var(A + C -B) = 4.25
The standard deviation = 
The standard deviation = 2.06155
Answer:
It would take 5 1/3 hours
Step-by-step explanation:
<u>Step 1: Make an expression</u>
8 * 2/3 = x
<u>Step 2: Multiply</u>
8 * 2/3 = x
16/3 = x
3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 1/3
1 + 1 + 1 + 1 + 1 + 1/3
<em>5 1/3</em>
<em />
Answer: It would take 5 1/3 hours
Answer:
<em>The distance to aunt may's wedding = 325.8 miles</em>
<em>The distance between Aunt may's wedding to cousin Sam's</em>
<em>graduation = 88.5 miles. The total distance = 352.8</em>
<em>d u + 88.5</em>
<em>4 41.3 miles</em>
Step-by-step explanation:
1/27
Cuz y=3^(-3)=1/(3^3)=1/27
<span>Exponent
is a number used to express shorter equation; it is a number that says how many
times you are going to multiply the base number.
</span><span>
Exponents have several laws, here are
some:
=> x^1 = x
=> x^0 = 1
=> x^-1 = 1/x
=> x^m x^n = X^m+n
=> x^m/x^n = x^m-n
And since we were asked to write an
expression with a negative exponent that has a value between 0 and ½
=> 2^ -2 = ½
</span>
