This preview shows pages 1–2. Sign up to view the full content.
80
CHAPTER 4. DISCRETE RANDOM VARIABLES
C.
All of the data have the same value.
D.
There are no data to begin with.
Exercise 4.51: REVIEW QUESTION 8
(Solution on p. 85.)
The statement that best describes the illustration below is:
Figure 4.1
A.
The mean is equal to the median.
B.
There is no ﬁrst quartile.
C.
The lowest data value is the median.
D.
The median equals
(
Q
1
+
Q
3
)
2
Exercise 4.52: REVIEW QUESTION 9
(Solution on p. 85.)
According to a recent article (San Jose Mercury News) the average number of babies born with
signiﬁcant hearing loss (deafness) is approximately 2 per 1000 babies in a healthy baby nursery.
The number climbs to an average of 30 per 1000 babies in an intensive care nursery.
Suppose that 1000 babies from healthy nursery babies were surveyed. Find the probability that
exactly 2 babies were born deaf.
Exercise 4.53: REVIEW QUESTION 10
(Solution on p. 86.)
A “friend” offers you the following “deal.” For a $10 fee, you may pick an envelope from a box
containing 100 seemingly identical envelopes. However, each envelope contains a coupon for a
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
This document was uploaded on 10/31/2011 for the course STA 2023 at University of Florida.
 Fall '08
 Ripol
 Statistics

Click to edit the document details