Month: February 2022

Categories
Statistics

The number of parameters in uniform distribution is (are): (STA301)

  • 1
  • 2
  • 3
  • 4
Categories
Statistics

If b(x, 7, 0.30), the variance of this distribution is: (STA301)

1.77
1.74
1.44
1.47 

Categories
Statistics

As a rule of thumb, when n>=30, then we can assume that………is normally distributed: (STA301)

  • Probability distribution
  • Sampling distribution
  • Binomial distribution
  • Sampling distribution of sample mean
Categories
Statistics

If a random variable X denotes the number of heads when we toss a fair coin 5 times, the X assumed the values: (STA301)

  • 0,1,2,3
  • 1, 2,3,4,5
  • 0, 1, 2,3,4,5
  • 1, 5, 5
Categories
Statistics

The normal distribution has points of infection which are equidistance from the: (STA301)

Median
Mean
Mode
Mean,Median & Mode

Categories
Statistics

Which of the following is NOT applicable to a Poisson distribution? (STA301)

  • IF P = 0.5 & n = 19
  • IF P = 0.01 & n = 200
  • IF P = 0.02 & n = 300
  • IF P = 0.03 & n = 500
Categories
Statistics

If p is very small and n is considerably large then we shall apply the: (sta301)

  • Binomial distribution
  • Hypergeometric distribution
  • Poisson distribution
  • Exponential distribution
Categories
Statistics

E(10X +3) =_______ (sta301)

10 E(X)
E(X)+3
10 E(X)+3
100E(X)

Categories
Statistics

The Probabilities of the various values of the sample satistic can be computed using the……… definition of probability.(STA301)

  • Subjective
  • Objective
  • Classical
  • None of the above
Categories
Statistics

Binomial distribution is skewed to the right if: (STA301)

  • p=q
  • P<q 
  • p>q
  • p=n