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muminat
3 years ago
9

In a group of 100 students, 25 own a laptop, 40 own a mobile phone, and 35 own either a

Mathematics
1 answer:
Talja [164]3 years ago
8 0

Answer:

My best answer is that the probability is 35/100 that the student chosen at random owns neither a laptop nor a mobile phone.

Step-by-step explanation:

If you go back and read the introductory passage, you will notice it says, "In a group of 100 students... 35 own either a laptop or a mobile phone, but not both." And I think the other numbers, I.E. 25 and 40, were just meant to throw us off. Therefore, I think 35/100 is the probability.

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A fruit sekker buts 50 boxes of mangoes each containing 100 m mangoes at the rate of ₹1200 per box he sells each mangoes for ₹20
Dahasolnce [82]

Answer:

₹40000, 66.6%

Step-by-step explanation:

Given data

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Total cost= 50*1200= ₹60000

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Cost price per mago= 60000/5000=  ₹12

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8 0
3 years ago
Richard practiced piano each of 3 piano solos for 5/12 hour. How long did he practice in all? Please show how to figure
Aleonysh [2.5K]
3 piano solos....each is 5/12 hr....
u can either add : 5/12 + 5/12 + 5/12 = 15/12 = 1 1/4 hrs

or u could multiply : 3 * 5/12 = 15/12 = 1 1/4 hs

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The strength of the linear association between two variables is quantified by the correlation coefficient. The correlation coefficient always takes a value between -1 and 1. The 1 represents the perfect positive correlation and -1 represents the perfect negative correlation whereas the 0 represents the no correlation between two variables.

So, if the value of the correlation coefficient between shoe size and IQ is r = +1.99 then,

Analysts in some fields do not consider a correlation significant until the value is at least 0.8. However, a correlation coefficient with an absolute value of 0.9 or greater indicates a very strong relationship. 2.

Learn more about correlation values here: brainly.com/question/4219149

#SPJ4

5 0
2 years ago
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