IQ Scores Form a Normal Distribution with µ = 100

question 23

Multiple Choice

IQ scores form a normal distribution with µ = 100 and σ = 15.Individuals with IQs between 90 and110 are classified as average.What proportion of the population is average?

• A)0.7486
• B)0.5028
• C)0.4972
• D)0.2486

---

Definitions:

Cost of Goods Sold

The direct costs attributable to the production of goods sold by a company.

FIFO Perpetual

A method of inventory valuation where goods are recorded and sold based on the order they were received, continually updating the inventory ledger.

Inventory Value

The cost associated with the goods and materials held by a company for sale or production purposes.

Weighted-Average

A calculation method that takes into account the varying degrees of importance of the numbers in a data set.