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mojhsa [17]
3 years ago
8

30 points.. Please Help! I don't understand what to do with this question...a bit confused.

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
5 0
  Eh, here's my best try for a table:

                       <u>Like tv</u>          <u> don't like tv</u>       <u>total</u>
<u>Like reading:</u>     70                     10                 80
 <u>Don't like read</u>. <u>20</u>                     <u>30</u>               <u>50 </u> 
      <u>total </u>              90                    40               130

The percentage of students that like tv as well as reading is- 70 divided by 130 which gives you .538 which in percentage is 53.8%.

The probability of a student that does not prefer to watch tv as also does not like to spend their time reading is 30 over 40 which can be simplified or reduced to 3 over 4. [30/40 reduced to 3/4]

Hope this somehow helped you :)


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Weekly wages at a certain factory are
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Answer:

Step-by-step explanation:

Weekly wages at a certain factory are

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z= (x - u)/s

Where

u = mean

s = standard deviation

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From the given information,

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s = 50

The probability that a worker

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z = (350 - 400)/50 = -50/50 = -1

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What property is used in the second step of solving the inequality below?
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The property used is B: addition property

Step-by-step explanation:

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Step-by-step explanation:

The formula for gradient of the straight line is given by:

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