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kondaur [170]
3 years ago
7

Madison went to the mall with her big sister last week and their mom drop them off at 1 o'clock and said I'll pick you up at 2:3

0 the girls been 56 of an hour at the toy store 2/3 of an hour at the pet store and 1/2 of an hour at the food court when they got back to the bench to meet their mom she was already there who Long was her mom waiting
Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

56 min at the toy store (1:56)

40 min at the pet store (2:36 i believe)

30 min at the food court (3:06 if i'm correct^^)

the mom was waiting for about 1 hour and 6 min

I hope this was right worked hard

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It would be 50

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Plz help i suck art math
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um 600?? I'm sorry if that's wrong

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Can someone answers this question please master it correctly if it’s corect I will mark you brainliest
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Answer:

4 people will be expected to win the prize

Step-by-step explanation:

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Y is a random variable that is distributed N(-16, 1.21). Find k such that Prob(-15.043 &lt; Y ≤ k) = 0.1546. (Round your answer
IgorLugansk [536]

Transform <em>Y</em> to <em>Z</em>, which is distributed N(0, 1), using the formula

<em>Y</em> = <em>µ</em> + <em>σZ</em>

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Pr[-15.043 < <em>Y</em> ≤ <em>k</em>] = 0.1546

Pr[(-15.043 + 16)/1.21 < (<em>Y</em> + 16)/1.21 ≤ (<em>k</em> + 16)/1.21] = 0.1546

Pr[0.791 < <em>Z</em> ≤ (<em>k</em> + 16)/1.21] ≈ 0.1546

Pr[<em>Z</em> ≤ (<em>k</em> + 16)/1.21] - Pr[<em>Z</em> < 0.791] = 0.1546

Pr[<em>Z</em> ≤ (<em>k</em> + 16)/1.21] = 0.1546 + Pr[<em>Z</em> < 0.791]

Pr[<em>Z</em> ≤ (<em>k</em> + 16)/1.21] ≈ 0.1546 + 0.786

Pr[<em>Z</em> ≤ (<em>k</em> + 16)/1.21] ≈ 0.940

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Solve for <em>k</em> :

<em>k</em> + 16 = 1.21 • 1.556

<em>k</em> ≈ -14.118

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