r. Sanderson marks his class on a normal curve. Those with z-scores above 1.9 will recieve an A, those between 1.9 and 1.2 will receive a B, those between 1.2 and -0.6 will receive a C, those between -0.6 and -1.9 will receive a D and those under -1.9 will receive an F. Determine the percent of grades that will be A,B,C,D and F. Round two decimal places as needed in eac
r. Sanderson marks his class on a normal curve. Those with z-scores above 1.9 will recieve an A, those between 1.9 and 1.2 will receive a B, those between 1.2 and -0.6 will receive a C, those between -0.6 and -1.9 will receive a D and those under -1.9 will receive an F. Determine the percent of grades that will be A,B,C,D and F. Round two decimal places as needed in eac
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Mr. Sanderson marks his class on a normal curve. Those with z-scores above 1.9 will recieve an A, those between 1.9 and 1.2 will receive a B, those between 1.2 and -0.6 will receive a C, those between -0.6 and -1.9 will receive a D and those under -1.9 will receive an F. Determine the percent of grades that will be A,B,C,D and F. Round two decimal places as needed in each.

Transcribed Image Text:Mr Sanderson marks his class on a normal curve. Those with z-scores above 1.9 will receive an A, those between 1.9 and 1.2 will receive a B, those between 1.2 and -0.6 will receive a C, those between - 0,6 and - 1.9 will
receive a D, and those under -1.9 will receive an F. Determine the percent of grades that will be A, B, C, D. and F.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table D
% of the grades are A's
(Round to two decimal places as needed.)
Areas of a Standard Normal Distribution
Areas of a Standard Normal Distribution
% of grades are B's.
(Round to two decimal places as needed.)
Table of Areas to the Left of z When z Is Negative
Table of Areas to the Left of z When z Is Positive
% of grades are C's.
(Round to two decimal places as needed.)
00
01
.02
.03
.04
.05
.06
07
.08
L09
.00
.01
.02
.03
.04
.05
.06
07
.08
.09
-3.4
.0003
.0003
.0003
.0003
.0003
.0003
.0003
.0003
.0003
.000
0.0
5000
5040
5080
5160
.5199
5279
5319
5120
5517
5239
5636
535
575
-3.3
-3.2
-3.1
-3.0
-2.9
-2.8
-2,7
0005
.0005
.0005
.0004
.0004
.0004
0004
.0004
.0004
000
0.1
5478
% of grades are D's.
.5398
5438
5557
5596
.5987
5675
5714
.0007
0007
.0006
.0006
.0006
0006
0006
0005
0005
00
0.2
5793
5871
.6103
5832
.6217
5910
5948
.6026
.6064
(Round to two decimal places as needed.)
.614
.651
L0010
.0009
.0009
.0009
.0008
.0008
0008
0008
0007
000
0.3
.6255
6368
.6443
6480
6179
.6554
6915
.7257
6293
6331
.6406
.6772
.7123
7454
0013
.0013
.0013
.0012
.0012
.0011
.0011
.0010
L001
0.4
6591
6628
.6664
6700
.6736
.6808
6844
.687
% of grades are F's.
(Round to two decimal places as needed.)
0019
0018
.0018
0017
.0016
0016
.0015
001
6985
7019
.7190
0015
0021
.0014
0.5
0.6
6950
7291
7054
7088
.7157
.7486
.722
754
0026
.0025
0024
.0023
0023
.0022
.0021
.0020
001
.7324
7357
7673
7380
7422
.7517
0035
002
7764
.7823
785
813
.0034
.0033
0032
.0043
0031
0030
0029
0028
0027
0037
0.7
7580
7611
7642
7939
.7704
7995
7734
7794
.0047
003
7881
7967
8051
8315
8078
0045
.0060
.8106
8365
.0044
.0041
.0040
0054
007
0039
0038
08
7910
25
838
0062
0082
.0059
0078
.0057
0075
.0055
0052
O069
0049
0.9
8159
8413
0051
8186
8212
8238
8264
8289
8340
862
883
006
8485
8708
8508
8531
8554
.8770
8577
8790
2.4
.0080
0073
.0066
8599
8438
8665
8461
0087
01 13
-23
0107
0102
O099
0094
0091
008
1.1
8643
8686
8749
8810
8729
8925
0104
0096
0089
901
917
11
8888
8907
8944
.8962
8980
9147
9292
22
8997
0139
0179
0136
.0132
L0129
0166
.0125
L012
0119
.0116
1.2
8849
8869
9049
9207
9082
9115
9131
9162
0154
0197
0250
.0146
.0188
014
1.3
9032
9066
9099
-2.1
-2.0
-1.9
.0174
0222
L0170
0217
0274
0162
L0207
0262
O18
L0150
9236
9306
9279
9406
931
.018
.023
.029
L0228
0212
0202
9192
9222
9251
9265
0192
0244
L0307
0392 0384
14
9429
9535
944
Enter your answer in each of the answer
9332
9357
9474
9370
9382
9495
.9394
9418
.0268
0336
0256
0322
0401
.0239
1.5
.9345
9463
9564
L0287
.0281
0351
0436
954
963 -
9484
9505
.9599
9525
9616
0314
.0301
0375
1.6
-1.8
-1.7
9452
9554
L0344
L0329
1.0409
.0359
0446
0427
.0418
1.7
9573
9582
9591
9608
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