Business Statistics

A coin is tossed 1000 times and head comes out 550 times. Can the deviation from expected value be due to fluctuations of simple sampling?

Probability is the ratio of favourable events to the . . . . . . . . of equally likely events.

Distributions which are not obtained by actual observations but are reduced mathematically under certain definite hypothesis or assumptions are called

When coefficient of skewness is zero the distribution is

Standard error of mean computed by

Which of the following application does not belong to Poisson distribution

Statements given below are related to analysis of variance. Identify the statements that are true.
Statement I The shape of 'F' distribution depends on the number of degrees of freedom in both the numerator and the denominator of the 'F' ratio.
Statement II In analysis of variance, sample sizes should be equal.
Statement III Analysis of variance may be used to test whether the means of more than two populations are equal.

In a certain field of construction work, the wages are assumed to follow a normal distribution, with an average wage of Rs. 4 per day and a standard deviation of Rs. 0.50. If 20 workers received wages of more than Rs. 4.50 per day, what is the total number of workers?

Attributes of the information includes

If the proportion of defective in a bulk is 4%, find the probability of not more than 2 defectives in a sample of 10, it is known that e^-4 = 6703