Question

0.7 1 0 20 A histogram has a horizontal axis labeled from 0.7 to 1 and a vertical axis labeled from 0 to 20 in increments of 1. Six vertical bars with class width 0.05 are plotted with heights as follows, with the class listed first and the height listed second: from 0.7 to 0.75, 4; from 0.75 to 0.8, 10; from 0.8 to 0.85, 17; from 0.85 to 0.9, 10; from 0.9 to 0.95, 6; from 0.95 to 1, 3. (c) Use the Empirical Rule to determine the percentage of candies with weights between 0.7 and 0.98 gram. Hint: x overbar equals 0.84 . 95% (d) Determine the actual percentage of candies that weigh between 0.7 and 0.98 gram, inclusive. nothing%

Answer #1

The data set below contains the average yearly retail gasoline
prices (cents/gallon) from 1990 to 2007, from a regional sample
of gasoline stations. Complete parts a through c. Full data set
Year 1990 1991 1992 1993 1994 1995 1996 1997 1998 Price 9090 102102
112112 119119 123123 107107 9999 103103 9797 Year 1999 2000 2001
2002 2003 2004 2005 2006 2007 Price 115115 133133 153153 141141
191191 201201 190190 247247 285285 a) Create a histogram of the
data and describe...

An e-commerce Web site claims that
4
%
of people who visit the site make a purchase. Complete parts a
through e below based on a random sample of
15
people who visited the Web site.
a. What is the probability that none of the people will make
a
purchase?
The probability is
nothing
.
(Round to four decimal places as needed.)
b. What is the probability that less than 3 people will make a
purchase?
The probability is
nothing...

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