hou schold chores by all adults have a mean 8. The number of hours spent per meek on hau of 28 houns and atondard deviatian of z hours. The proba hility that the mecon hours Snat per meek on houschold chares by a sample of 49 adults mill be mare than 25.75 hours is: 4) 10.56% b) 89.44% c) 39.44% d) 60.56%
hou schold chores by all adults have a mean 8. The number of hours spent per meek on hau of 28 houns and atondard deviatian of z hours. The proba hility that the mecon hours Snat per meek on houschold chares by a sample of 49 adults mill be mare than 25.75 hours is: 4) 10.56% b) 89.44% c) 39.44% d) 60.56%
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
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Please indicate if the answers are A,B,C or D from number 8-17 please.

Transcribed Image Text:00
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13. A quality technician selects 3 iHem From a box of 50. Hlorr mann different suletis
oF size 3 are poss
ble?
b) 150
c) 50
14. Thirty tro percent of adults did notrisit their physician's' offices last year. For a random
somple of 15 aduls, the mean and the stondard deviation for the number adus in this somple
who did not visit the ir physic ions last
wopuo
yeare are
:
b) 3.22 and 3.26
pud
15. The Klloming table lists the probahiliy distribution of a discrete random variable x:
a) 2.19 and 3.11
c)4.80 ond l.81
18'1p
d)1.81 and
2.19
2.
to
-24
6.
-08
3.
5.
•32
90-
-02
The mean and the standard deviation of the random raniable x
respectively:
a) 2.71 and 17.67
b) 4.21 and 2.91
c)3.93 nnd 1-49
di1.96 end 3-78
16. The probability that a person is a college graduate is 35% and that he/she has a high bload
Independent, the probabihid, that
pres3ure is 12. Assuming thet there trro events are
selected at randam is a ailege graduate and has high blood pressure is
Ves od
a) 45.5%
b) 4.2%
d)9.5%
Use the follamng toble in
Coad Bettay
Defective Battery
mamufachund_by Conpang A
monufactured by Compang B
01
20
17. JP a battery is avlected at rondan, the probebility that this battery is good or is made by
Compony Bisoppraimately :
c) 42.00%
d)96.70%
10000%
(page4)

Transcribed Image Text:Page 4 of 8
8. The number of hours speat per meek on household chores by all adults have a mean
of 28 houiss and a stondard deviatian of 7 houry. The probahilily that the meen hours
spnt per meek on hosehold chares by a
S ample of 49 adults mill be more than 25.75
hours is!
a) 10.56%
c)39.44%
d) G0.56%
9.60% of all adults are in faver of abolishing the sales tax and increasing the income tax.
The probability that in a rondom sample of 400 adults, 225 or Lesa mill be in favor of
abalishing the sales tax and snceasing the income
lax is
a) 43.06%
c)6.94%
d) 56.94%
10. The net meighs of all boxes of Top Taste ookies are noimally distbuted mith a mean of 32.07
ounces and a stendard devicdim of 0-|| ounce-The probahility that the net weight of a randemly
selecded bəx of Such Cookies is between 31.81 and 31.94 ounces is :
a) 10.99%
b) 87-19 %
c)49.09 %
d) 93.32%
11. Eight paant of all allege graduates hired by companies
5 years.the probability that
Companies, exacHy tro mill stey mith the same
stay nith the same Campeny for more then
such college graduates hired recently by
mare than Five years is:
in a randan sample of 12
u) 12.94%
c)23. 01%.
d) 33-05 %
12.Thirly percentof Law studenta who sit for a ber examinetion pass itthe first time using the Binamiel
distrbution table » the probability that in a randam semple of 15 larudenta who mill ait for the bar
exeminadim, at most a mill pass it the First ime is: (Seethe attached Table )
3.
a) 83.00%
17-00%
c) 70.32%
d) 29:68%
17
(page 3)
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