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3 years ago

Which statement is true about the distribution?

Mathematics

2 answers:

ozzi3 years ago

8 0

Answer with explanation:

Lowest Variate in distribution =10

Largest Variate in distribution =45

Range =Maximum Variate - Minimum Variate

= 45 -10

=35

→First Quartile

$Q_{1}=15$

→Median =Q= 25

→Third Quartile

$Q_{3}=40$

IQR=Inter Quartile Range

$=Q_{3}-Q_{1}\\\\=40-15\\\\=25$

To calculate Outliers

$\rightarrow Q_{3} + 1.5\times IQR=40 +1.5 \times 25\\\\=40 +3.75\\\\=43.75\\\\\rightarrow Q_{1} - 1.5\times IQR\\\\=15 - 1.5 \times 25\\\\=15 - 3.75\\\\=11.25$

→Numbers below, 11.25 and numbers above 43.75 are outliers.

So, both , 10 and 45 , are outliers.

Therefore, range is not good measure of variability.

→→I QR , is better measure of Variability.

But , Option A,⇒ Either the IQR or the range are good measures of variability because the distribution has an outlier.

MissTica3 years ago

5 0

Answer:

it would be C. Either the IQR or the range are good measures of variability because the distribution has no outliers

Step-by-step explanation:

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4 years ago

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Step-by-step explanation:

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3 years ago

BRAINLIEST AND 60 POINTS!!!!!!!

PIT_PIT [208]

Answer:

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3 years ago

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erastova [34]

Answer:

The probability that the wait time is greater than 14 minutes is 0.4786.

Step-by-step explanation:

The random variable X is defined as the waiting time to be seated at a restaurant during the evening.

The average waiting time is, β = 19 minutes.

The random variable X follows an Exponential distribution with parameter $\lambda=\frac{1}{\beta}=\frac{1}{19}$ .

The probability distribution function of X is:

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Thus, the probability that the wait time is greater than 14 minutes is 0.4786.

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