Course Code eco452 Question The formular for Normal distribution is Answer Z = ( X− μ)/σ Question The normal curve is bell-shaped and symmetrical about its Answer mean Question The normal distribution as a continuous probability distribution Answer Continuous probability distribution Question What is the probability of obtaining less than 3 heads in 5 toss of coin Answer 1.12 heads Question What is the probability of obtaining 3 heads in 5 toss of a balanced coin Answer 0.3125 Question Binomial distribution is usually use to predict occurrence of events that are Answer mutually exclusive Question If a coin is tossed 120 times, what is the probability that head will appear between 45% and 55%? Answer 0.7242 Question Given an infinite population consisting of sample size n. The sampling distribution of proportion is said to have a mean of Answer np Question The mean of sample must always equal to the population mean it’s representing and the variance of the population and sample estimate are equal Answer TRUE' Question The characteristics of the roles expected of statistical research in decision making and policy formulation for societal development Answer All of the options Question The formular for Normal distribution is Answer Z = ( X− μ)/σ Question The normal curve is bell-shaped and symmetrical about its Answer mean Question The normal distribution as a continuous probability distribution Answer Continuous probability distribution Question What is the probability of obtaining less than 3 heads in 5 toss of coin Answer 1.12 heads Question What is the probability of obtaining 3 heads in 5 toss of a balanced coin Answer 0.3125 Question Binomial distribution is usually use to predict occurrence of events that are Answer mutually exclusive Question If a coin is tossed 120 times, what is the probability that head will appear between 45% and 55%? Answer 0.7242 Question Given an infinite population consisting of sample size n. The sampling distribution of proportion is said to have a mean of Answer np Question The mean of sample must always equal to the population mean it’s representing and the variance of the population and sample estimate are equal Answer TRUE' Question The characteristics of the roles expected of statistical research in decision making and policy formulation for societal development Answer All of the options Try Another Search