मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी वाणिज्य इयत्ता १२

Choose the correct alternative: In a large statistics class, the heights of the students are normally distributed with a mean of 172 cm and a variance of 25 cm. What proportion of students is between

Advertisements
Advertisements

प्रश्न

Choose the correct alternative:

In a large statistics class, the heights of the students are normally distributed with a mean of 172 cm and a variance of 25 cm. What proportion of students is between 165cm and 181 cm in height?

पर्याय

  • 0.954

  • 0.601

  • 0.718

  • 0.883

MCQ
Advertisements

उत्तर

0.883

shaalaa.com
Distribution
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Probability Distributions - Exercise 7.4 [पृष्ठ १७०]

APPEARS IN

सामाचीर कलवी Business Mathematics and Statistics [English] Class 12 TN Board
पाठ 7 Probability Distributions
Exercise 7.4 | Q 17 | पृष्ठ १७०

संबंधित प्रश्‍न

Forty percent of business travellers carry a laptop. In a sample of 15 business travelers, what is the probability that atleast three of the travelers have a laptop?


Write the conditions for which the poisson distribution is a limiting case of binomial distribution


The distribution of the number of road accidents per day in a city is poisson with mean 4. Find the number of days out of 100 days when there will be atleast 2 accidents 


Assuming that a fatal accident in a factory during the year is 1/1200, calculate the probability that in a factory employing 300 workers there will be at least two fatal accidents in a year, (given e-0.25 = 0.7788).


The average number of customers, who appear in a counter of a certain bank per minute is two. Find the probability that during a given minute three or more customers appear


Choose the correct alternative:

The parameters of the normal distribution f(x) = `(1/sqrt(72pi))"e"^(-(x - 10)^2)/72 - oo < x < oo`


Choose the correct alternative:

An experiment succeeds twice as often as it fails. The chance that in the next six trials, there shall be at least four successes is


Choose the correct alternative:

Using the standard normal table, the sum of the probabilities to the right of z = 2.18 and to the left of z = – 1.75 is


The annual salaries of employees in a large company are approximately normally distributed with a mean of $50,000 and a standard deviation of $20,000. What percent of people earn less than $40,000?


X is a normally distributed variable with mean µ = 30 and standard deviation σ = 4. Find P(X < 40)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×