The average monthly sales of 5000 firms are normally distributed. Its mean 10000 respectively. Find and standard deviation are 36000 and () the number of firms the sales of which are over (m) the percentage of tims the sales of which will be between () the number of tirms the sales of which will be between relevant extract at the area table (under the normal curve) is given below: 40000. 38500 and 41000. 30000 and 40000. The 0.25 0.40 0.5 0.6 Area 0.0987 0.1554 0.1915 0.2257

MATLAB: An Introduction with Applications
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The average monthly sales of 5000 firms are normally distributed. Its mean
10000 respectively. Find
and standard deviation are
36000 and
() the number of firms the sales of which are over
() the percentage of firms the sales of which will be between
() the number of firms the sales of which will be between
relevant extract at the area table (under the normal curve) is given below :
40000.
38500 and 41000.
30000 and
40000. The
0.25
0.40
0.5
0.6
Area
0.0987
0.1554
0.1915
0.2257
Transcribed Image Text:The average monthly sales of 5000 firms are normally distributed. Its mean 10000 respectively. Find and standard deviation are 36000 and () the number of firms the sales of which are over () the percentage of firms the sales of which will be between () the number of firms the sales of which will be between relevant extract at the area table (under the normal curve) is given below : 40000. 38500 and 41000. 30000 and 40000. The 0.25 0.40 0.5 0.6 Area 0.0987 0.1554 0.1915 0.2257
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