Question

The mean iq of a group of children is 90 and standard deviation of 20 assuming that iq is normally distributed find the percent of children with iq over 100

Answer 1

Answer:

Always plot data first: make a graph.

2. Look for the overall pattern (shape, center, and spread) and

for striking departures such as outliers.

3. Calculate a numerical summary to briefly describe center and

spread.

4. Sometimes the overall pattern of a large number of

observations is so regular that it can be described by a