Hi

A survey of 978 investors asked how often they tracked their portfolio.

Daily               220

Weekly              280

Monthly             274

Couple of times/year 141

Don’t track           63 

total                978

What is the probability that an adult investor tracks his or her portfolio daily

According to this survey, one would expect that probability to be:

 P ( daily) = 220/978 = .225 

RELATED QUESTIONS

In 2001 the stock market took some big swings up and down. One thousand investors were... (answered by stanbon)

The following excerpt is from an article in The New York Times in July 1999.†
While... (answered by ikleyn)

The following excerpt is from an article in The New York Times in July 1999.†
While... (answered by ikleyn)

In a survey of 250 employees of a company regarding their 401(K) investments, the... (answered by lynnlo)

In a survey of 275 employees of a company regarding their 401(K) investments, the... (answered by ewatrrr)

In a survey of 275 employees of a company regarding their 401(K) investments, the... (answered by Lightning_Fast,ikleyn)

Stock X, Stock Y, and the market have had the following returns over the past four years.
 (answered by solver91311)

​In a survey, children were asked what flavor of ice cream they favored. 600 children,... (answered by jerryguo41)

The Big Bull investment club has a portfolio that contains only two stocks. At the end of  (answered by stanbon)