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Alexxandr [17]
4 years ago
13

An LG Dishwasher, which costs \$800, has a 20% chance of needing to be replaced in the first 2 years of purchase. A two-year ext

ended warrantee costs \$112.10 on a dishwasher. What is the expected value of the extended warranty assuming it is replaced in the first 2 years?
I don't even know how to start with this or how to find the probability distribution as my book tells me to do.
Mathematics
1 answer:
wariber [46]4 years ago
7 0

Answer:

start with the 800

Step-by-step explanation:

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The ages of a group of 135 randomly selected adult females have a standard deviation of 18.3 years. Assume that the ages of fema
NeTakaya

Answer:

Therefore, the number of female statistics student ages that must be obtained in order to estimate the mean age of all female statistics student is 3625 female statistics student

Step-by-step explanation:

Here, we have

n = \left (\frac{(z_{\alpha/2}) (\sigma) }{E}   \right )^{2}

Where:

n = Required sample size

σ = Standard deviation = 18.3

E = Margin of error = 1/2 year

z_{\alpha /2} = Critical score from the confidence level = 1.645

Therefore,

n = \left (\frac{(1.645) (18.3) }{\frac{1}{2} }   \right )^{2} = 3624.88

Therefore, the number of female statistics student ages that must be obtained in order to estimate the mean age of all female statistics student = 3625 female statistics student.

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3 years ago
What is the measure of angle x, in degrees
ratelena [41]

Option C ,

40 degrees

Because angle Z was 70 (isosceles triangle)

Then 180-140=40 degrees

7 0
3 years ago
Select the correct answer.<br> Solve
Alja [10]

Answer:

-44 4/9

Step-by-step explanation:

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-36 4/9+10 2/9 = 26 6/9

26 6/9 - (18 2/9)= -44 4/9

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4 years ago
Solve the expression <br> -2.2 x (-2) / (-1/4) x 5
Firdavs [7]
Answer=3.52

x=(-2.2*(-2))/((-1/4)*5)
x=(4.4)/(-1.25)
x=3.52
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4 years ago
Formala to calculate time for exponential growth​
Sonja [21]

Answer:

<em>To calculate exponential growth, use the formula y(t) = a__ekt, where a is the value at the start, k is the rate of growth or decay, t is time and y(t) is the population's value at time t.</em>

Mark as brainliest please..

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