The variance of the binomial distribution of the number of households with landline service is 2.
<h3>What is the binomial probability distribution?</h3>
It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.
The variance of the distribution is given by:
V(X) = np(1 - p)
In this problem, the parameters are given as follows:
n = 8, p = 0.504.
Hence the variance is given by:
V(X) = 8 x 0.504 x 0.496 = 2.
More can be learned about the binomial distribution at brainly.com/question/24863377
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Answer:
74 students
Step-by-step explanation:
26x3=78
78-4=74
Formula for speed = distance/ time
S = 7/.9 = 7.77 miles per hour or 8 mph if you round up.
Let's solve your equation step-by-step.
<span><span><span>2x</span>−3</span>=<span><span>−<span>2<span>(<span>32</span>)</span></span></span>−x
</span></span>Step 1: Simplify both sides of the equation.
<span><span><span>2x</span>−3</span>=<span><span>−<span>2<span>(<span>32</span>)</span></span></span>−x
</span></span><span>Simplify: (Show steps)
</span><span><span><span>2x</span>−3</span>=<span><span>−x</span>−3
</span></span>Step 2: Add x to both sides.
<span><span><span><span>2x</span>−3</span>+x</span>=<span><span><span>−x</span>−3</span>+x
</span></span><span><span><span>3x</span>−3</span>=<span>−3
</span></span>Step 3: Add 3 to both sides.
<span><span><span><span>3x</span>−3</span>+3</span>=<span><span>−3</span>+3
</span></span><span><span>3x</span>=0
</span>Step 4: Divide both sides by 3.
<span><span><span>3x</span>3</span>=<span>03
</span></span><span>x=<span>0
Source: MATH PAPA
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