Exam 16: Statistical Reasoning in Everyday Life

Seven members of a boys' club reported the following individual earnings from their sale of cookies: $2, $9, $8, $10, $4, $9, and $7. In this distribution of individual earnings

The illusion that uncontrollable events are correlated with our actions is facilitated by a statistical phenomenon known as

Colette received an unusually high grade of A on her first biology test and a B+ on the second, even though she studied equally for both tests. Which of the following best explains Colette's deteriorating pattern of performance?

When you read a bar graph, it is most important for you to

Although Shien once scored 37 points during a single high school basketball game, he was subsequently unable to beat or match this record no matter how hard he tried. His experience may be at least partially explained in terms of

Cross-sectional research indicated that during early and middle adulthood, aging is associated with ________ levels of intelligence. Longitudinal research indicated that during this period of life, aging is associated with ________ levels of intelligence.

When a statistical average is reported in the news, it is most important for readers to

Approximately 95 percent of the cases represented by the normal curve fall within ________ standard deviation(s) from the mean.

When people's symptoms of emotional distress are at their worst, whatever they do to try to alleviate the condition is likely to be followed by improvement rather than further deterioration. This is best explained in terms of

If a set of standardized test scores is normally distributed, having a mean of 50 and a standard deviation of 10, approximately 68 percent of the group members receive scores somewhere between

In a single day, 45 babies were born in hospital X, 65 babies in hospital Y, and 25 babies in hospital Z. At which hospital is there the greatest probability that more than 60 percent of the babies are of the same sex?

Which of the following is true of the cross-sectional method?

A normal curve would approximate the distribution of

Unusual ESP subjects who defy chance when first tested nearly always lose their "psychic powers" when retested. This best illustrates

The precision with which sample statistics reflect population parameters is greater when the sample is

Gamblers often throw dice gently for low numbers and hard for high numbers. This most directly illustrates

Illusory correlation refers to

Professor Taylor arranged for people of different ages to complete a test of manual dexterity. She then compared manual dexterity across different age levels. The professor's research best illustrates a

As the size of a representative sample increases, the ________ of that sample is most likely to decrease.

In generalizing from a sample to the population, it is important that