Assume that adults have IQ scores that are normally distributed with a mean of u 100 and a standard deviation o = 15. Find the probability that a randomly selected adult has an IQ between 81 and 119. Click to view page 1 of the table. Click to view page 2 of the table, The probability that a randomly selected adult has an IQ between 81 and 119 is (Type an integer or decimal rounded to four decimal places as needed.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation o= 15. Find the probability that a randomly selected adult has an IQ between 81 and 119.
Click to view page 1 of the table. Click to view page 2 of the table,
The probability that a randomly selected adult has an IQ between 81 and 119 is
(Type an integer or decimal rounded to four decimal places as needed.)
Enter your answer in the answer box.
Save for Later
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Transcribed Image Text:Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation o= 15. Find the probability that a randomly selected adult has an IQ between 81 and 119. Click to view page 1 of the table. Click to view page 2 of the table, The probability that a randomly selected adult has an IQ between 81 and 119 is (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box. Save for Later CJL esc @ # $ & 3 4 8. 6. e
me
et
Standard Normal Table (Page 1)
i Standard Normal Table (Page 2)
to v
proba
e an
-1.6
0548
0537
.0526
.0516
• 0495
20
9772
9778
9783
9788
9793
9798
9803
9808
9812
9817
0505
.0485
.0475
.0465
0455
-1.5
0668
0655
0643
.0630
0618
.0606
.0594
0559
21
9821
.9826
9830
9834
.9838
9842
9846
.9850
9854
9857
.0582
.0571
-1.4
0808
0793
.0778
0764
0749
.0735
0721
0708
0694
2.2
9861
9864
9868
9871
9875
.9878
9881
.9884
9887
.9890
0681
-13
0968
0951
.0934
.9893
9896
9898
9901
9904
9906
9909
.9911
9913
9916
.0918
1093
0901
0885
.0869
.0853
0838
0823
2.3
-12
151
131
12
1075
1056
1038
1020
1003
0985
2.4
9918
9920
.9922
9925
9927
.9929
9931
9932
9934
.9936
-11
1357
1335
1314
1292
1271
2.5
.9938
.9940
9941
9943
.9945
9946
9948
.9949 . 9951
9952
1251
1230
1210
3190
170
.9959
9960
.9961
9962 A 9963
-1.0
1587
1562
1539
1515
1492
2.6
.9953
9955
9956
9957
9964
1469
1711
1446
1423
1401
1379
-0.9
1841
1814
1788
1762
1736
1685
1660
1635
1611
2.7
9965
,9966
9967
9968
.9969
.9970
9971
9972
9973
.9974
-0.8
2119
2090
2061
2033
2005
1977
1949
.1922
1894
1867
2.8
9974
9975
9976
9977
.9977
9978
9979
9979
9980
9981
-0.7
2420
2389
2358
2.9
.9981
.9982
9982
9983
.9984
9984
.9985
9985
.9986
9986
2327
2643
2296
2266
2236
220
2514
2177
2148
--0.6
.2743
2709
2676
.2611
2578
2546
2483
3.0
9987
9987
9987
9988
.9988
.9989
.9989
9989
9990
9990
2451
-0.5
-0.5
3085
3050
3015
2981
2946
2912
2877
2843
2810
3.1
9990
9991
9991
9991
9992
9992
9992
9992
9993
9993
2776
-04
3446
3409
3372
3336
3300
3264
3228
3192
3156
3.2
.9993
9993
.9994
9994
9994
.9994
.9994
9995
9995
.9995
3121
-03
-0.2
-0.1
3821
3783
3745
3.3
9995
9995
9995
9996
9996
9996
9996
9996
9996
9997
3707
3669
3632
3594
3557
3520
3483
9997
4207
4168
4129
4090
4052
4013
3974
3936
3897
3859
3.4
9997
9997
9997
9997
9997
9997
9997
9997
9998
4602
4562
4522
4483
4443
4404
4364
4325
4286
4247
3.50
9999
-0.0
5000
4960
4920
4880
4840
4801
4761
4721
4681
4641
and up
NOTE: For values of z above 3,49, use 09999 for the area
Common Critical Value
NOTE: For values of z below-3.49, use 0.0001 for the area.
*Use these common values that result from interpolation:
Use these common values that result from interpolation:
Confidence | Critical
Level
z score
1.645
Area
Value
Z score
Area
0.9500
0.90
1,645
-1.645
0.0500
2.575
0,9950
0.95
1.96
-2575
0.0050
Enter you
2575
0.99
Save fo
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Transcribed Image Text:me et Standard Normal Table (Page 1) i Standard Normal Table (Page 2) to v proba e an -1.6 0548 0537 .0526 .0516 • 0495 20 9772 9778 9783 9788 9793 9798 9803 9808 9812 9817 0505 .0485 .0475 .0465 0455 -1.5 0668 0655 0643 .0630 0618 .0606 .0594 0559 21 9821 .9826 9830 9834 .9838 9842 9846 .9850 9854 9857 .0582 .0571 -1.4 0808 0793 .0778 0764 0749 .0735 0721 0708 0694 2.2 9861 9864 9868 9871 9875 .9878 9881 .9884 9887 .9890 0681 -13 0968 0951 .0934 .9893 9896 9898 9901 9904 9906 9909 .9911 9913 9916 .0918 1093 0901 0885 .0869 .0853 0838 0823 2.3 -12 151 131 12 1075 1056 1038 1020 1003 0985 2.4 9918 9920 .9922 9925 9927 .9929 9931 9932 9934 .9936 -11 1357 1335 1314 1292 1271 2.5 .9938 .9940 9941 9943 .9945 9946 9948 .9949 . 9951 9952 1251 1230 1210 3190 170 .9959 9960 .9961 9962 A 9963 -1.0 1587 1562 1539 1515 1492 2.6 .9953 9955 9956 9957 9964 1469 1711 1446 1423 1401 1379 -0.9 1841 1814 1788 1762 1736 1685 1660 1635 1611 2.7 9965 ,9966 9967 9968 .9969 .9970 9971 9972 9973 .9974 -0.8 2119 2090 2061 2033 2005 1977 1949 .1922 1894 1867 2.8 9974 9975 9976 9977 .9977 9978 9979 9979 9980 9981 -0.7 2420 2389 2358 2.9 .9981 .9982 9982 9983 .9984 9984 .9985 9985 .9986 9986 2327 2643 2296 2266 2236 220 2514 2177 2148 --0.6 .2743 2709 2676 .2611 2578 2546 2483 3.0 9987 9987 9987 9988 .9988 .9989 .9989 9989 9990 9990 2451 -0.5 -0.5 3085 3050 3015 2981 2946 2912 2877 2843 2810 3.1 9990 9991 9991 9991 9992 9992 9992 9992 9993 9993 2776 -04 3446 3409 3372 3336 3300 3264 3228 3192 3156 3.2 .9993 9993 .9994 9994 9994 .9994 .9994 9995 9995 .9995 3121 -03 -0.2 -0.1 3821 3783 3745 3.3 9995 9995 9995 9996 9996 9996 9996 9996 9996 9997 3707 3669 3632 3594 3557 3520 3483 9997 4207 4168 4129 4090 4052 4013 3974 3936 3897 3859 3.4 9997 9997 9997 9997 9997 9997 9997 9997 9998 4602 4562 4522 4483 4443 4404 4364 4325 4286 4247 3.50 9999 -0.0 5000 4960 4920 4880 4840 4801 4761 4721 4681 4641 and up NOTE: For values of z above 3,49, use 09999 for the area Common Critical Value NOTE: For values of z below-3.49, use 0.0001 for the area. *Use these common values that result from interpolation: Use these common values that result from interpolation: Confidence | Critical Level z score 1.645 Area Value Z score Area 0.9500 0.90 1,645 -1.645 0.0500 2.575 0,9950 0.95 1.96 -2575 0.0050 Enter you 2575 0.99 Save fo Print Done Print Done O vA 3:16 esc @ # 2$ & 4. 6. 7 8 9. backspace %3D e r y
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