English
Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

Choose the correct alternative: The weights of newborn human babies are normally distributed with a mean of 3.2 kg and a standard deviation of 1.1 kg. What is the probability that a randomly selected

Advertisements
Advertisements

Question

Choose the correct alternative:

The weights of newborn human babies are normally distributed with a mean of 3.2 kg and a standard deviation of 1.1 kg. What is the probability that a randomly selected newborn baby weight less than 2.0 kg?

Options

  • 0.138

  • 0.428

  • 0.766

  • 0.262

MCQ
Advertisements

Solution

0.138

shaalaa.com
Distribution
  Is there an error in this question or solution?
Chapter 7: Probability Distributions - Exercise 7.4 [Page 171]

APPEARS IN

Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board
Chapter 7 Probability Distributions
Exercise 7.4 | Q 22 | Page 171

RELATED QUESTIONS

If 5% of the items produced turn out to be defective, then find out the probability that out of 20 items selected at random there are exactly three defectives


Defects in yarn manufactured by a local mill can be approximated by a distribution with a mean of 1.2 defects for every 6 metres of length. If lengths of 6 metres are to be inspected, find the probability of less than 2 defects


If 18% of the bolts produced by a machine are defective, determine the probability that out of the 4 bolts chosen at random exactly one will be defective


If the probability of success is 0.09, how many trials are needed to have a probability of atleast one success as 1/3 or more?


Among 28 professors of a certain department, 18 drive foreign cars and 10 drive local made cars. If 5 of these professors are selected at random, what is the probability that atleast 3 of them drive foreign cars?


Mention the properties of poisson distribution


If the heights of 500 students are normally distributed with mean 68.0 inches and standard deviation 3.0 inches, how many students have height less than or equal to 64 inches


Choose the correct alternative:

If X ~ N(µ, σ2), the maximum probability at the point of inflexion of normal distribution


A manufacturer of metal pistons finds that on the average, 12% of his pistons are rejected because they are either oversize or undersize. What is the probability that a batch of 10 pistons will contain no more than 2 rejects?


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×