Answer:
0.0139
Explanation:
Given that:
The number of sample (n) = 21
The sample distribution has mean (μ) and a standard deviation of σ/√n
The z score is given as (x - mean)/ standard deviation
x = 94.8 wpm, let us assume that σ = 10 and μ = 90
Therefore: z = (x - μ) / (σ/√n) = (94.8 - 90) / (10/√21) = 2.2
To calculate the probability using Z table:
P(X>94.8) = P(Z>94.8) = 1 - P(Z<94.8) = 1 - 0.9861 = 0.0139
The probability is low that is less than 0.05, the program is more effective than the old one.
Rational choice theory states that individuals rely on rational calculations to achieve outcomes that are in line with their personal objectives. These decisions provide people with the greatest benefit or satisfaction — given the choices available — and are also in their highest self-interest.
Answer:
$42.5 billion
Explanation:
the expected value formula = ∑ (valueₙ x probabilityₙ)
expected value = (low value x probability of low value) + (most likely value x probability of most likely value) + (high value x probability of high value)
= ($5 billion x 20%) + ($45 billion x 70%) + ($100 billion x 10%) = $1 billion + $31.5 billion + $10 billion = $42.5 billion
Answer:
At equilibrium demand is equal to supply therefore
Qd=Qs
50-2P=3P
By collecting like terms
50=3P+2P
50=5P
P=10
THEREFORE equilibrium price is 10
Explanation:
The internet was the form of mass media developed from a defense department project
