Post a New Question

Statistics

posted by .

A recent survey found that 70% of all adults over 50 wear glasses for driving. You randomly select 30 adults over 50, and ask if he or she wears glasses. Decide whether you can use the normal distribution to approximate the binomial distribution. If so, find the mean and standard deviation. If not, explain why.

  • Statistics -

    Mean = np = 30 * .7 = ?

    Standard deviation = √npq = √(30 * .7 * .3) = ?

    Note: q = 1 - p

    I'll let you finish the calculations.

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question