Case 446

Standard Deviation???????????????

1)The average temperature in an american state was recorded as 98.7 F with a standard deviation of 0.7 F. If this is a normal model what percentage of the towns in this state were below 97 F?

Is this question simply a case of taking the Z-Score as 1.7 and reading off the table which I believe gives the answer of 0.446?

2) Species A of an animal weighs average of 50 pounds and has standard deviation of 3.3.

Species B average is 57.5 with standard deviation of 1.7.

A zoo has a species A weighing 45 pounds and B at 54 pounds. Explaining fully determine which is more underweight.

Could someone please direct me as to how i would go about finding this answer please.

You gota lurve elementary statistics questions where the question setter does not really understand statistics well enough to set questions that make any sense. Suppose the correlation scale for temperature is comparable to the size of a state?

I'm not insisting that the beginning student of statistics understand such subtleties, but I do insist that text book authors do.

Case Ingersoll Garden Tractor Lawn Mower 446 Onan B43M 16HP Engine Block STD
Case Ingersoll Garden Tractor Lawn Mower 446 Onan B43M 16HP Engine Block STD
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CASE 222 224 226 444 446 448 DECK CENTER SPINDLE SHAFT
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Onan 16HP Case 446 BF MS 3264F Lifter tappet valves PAIR set GOOD SHAPE C20276
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Case Ingersoll 220 222 224 226 444 446 448 4120 3118 4116 3014 seat support tool
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Onan 16HP Case 446 B43M GA016 3622A Lifter tappet valves PAIR set GOOD SHAPE
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CASE INGERSOLL 446 TRAVEL VALVE BOLTS
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CASE INGERSOLL 224 HOOD HINGE PIN 220 222 444 442 446 448 ETC
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CASE INGERSOLL REAR HITCH BOLTS 444 446 448 442 220 222 224 226 4020 4018 4016
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case ingersoll 444 446 448 tractor rototiller hydraulic motor control valve
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CASE 220 224 444 446 448 222 Tractor Choke  Throttle Control Lever Knobs
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Case 446 Left Rear Fender
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Case 446 Hydraulic Control Valve
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Case 446 Right Rear Fender
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Case 446 Choke Cable
Case 446 Choke Cable
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Case 446 Right Rear Axle
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Case 446 Onan 16HP Bearing Block
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Case 446 Onan 16HP Flywheel Screen
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