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Author Question: A physical fitness association is including the mile run in its secondary-school fitness test. The ... (Read 113 times)

cherise1989

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A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 450 seconds and a standard deviation of 40 seconds. Between what times do we expect most (approximately 95%) of the boys to run the mile?
◦ between 371.6 and 528.4 sec
◦ between 0 and 515.824 sec
◦ between 384.2 and 515.824 sec
◦ between 355 and 545 sec


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Marked as best answer by cherise1989 on Jan 16, 2020

qytan

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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cherise1989

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Reply 2 on: Jan 16, 2020
:D TYSM


aruss1303

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Reply 3 on: Yesterday
Wow, this really help

 

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