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3 years ago

Can someone help me with this ?

Mathematics

1 answer:

Virty [35]3 years ago

3 0

Mark drove for 5 hrs
pranav drove for 3 hrs

Distance = speed x time
Pranav =50kmh x 3hrs
= 150 km
* note that they drove the same distance

Speed of mark=distance / time
=150 km / 5hrs
= 30 kmh

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svetlana [45]

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a) P(x≥6)=0.633

b) P(4≤x≤8)=0.8989 (one standard deviation from the mean).

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As this is a discrete distribution, we have to use integer values for the random variable. We will approximate both values for the bound of the interval.

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artcher [175]

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