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ahrayia [7]
3 years ago
6

FIND THE UNIT RATE .ROUND TO THE NEAREST HUNDRETH IF NESSARY (SUSAN PAID $7.40 FOR 5 POUNDS OF GREEN GRAPES?)

Mathematics
1 answer:
xeze [42]3 years ago
8 0
$7.40 ... 5 pounds of green grapes
$x = ? ... 1 pound of green grapes

If you would like to know how much money did Susan pay for 1 pound of green grapes, you can calculate this using the following steps:

7.40 * 1 = 5 * x
7.40 = 5 * x     /5
x = 7.40 / 5
x = $1.48

The correct result would be $1.48.
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Binomial; \mu p=87.5, \sigma p=7.542

Step-by-step explanation:

  • a distribution is said be a binomial distribution iff
  1. The probability of success of that event( let it be p) is same for every trial
  2. each trial should have 2 outcome : p or (1-p) i.e, success or failure only.
  3. there are fixed number of trials (n)
  4. the trials are independent
  • here, the trials are obviously independent ( because, one person's debt doesn't influence the other person's)
  • here n=250
  • the probability of success(0.35) is same for every trial

(35/100=0.35 is the required p here)

  • \mu_{p} =n*p=250*\frac{35}{100} =250*0.35=87.5

[since, the formula for \mu _{p} =n*p ]

  • \sigma _{p} =\sqrt{n*(p)*(1-p)} = \sqrt{250*0.35*(1-0.35)} = 7.542 ( approximately)

[since, the formula for [tex]\sigma _{p} =\sqrt{n*(p)*(1-p)}

  • therefore, it is Binomial; \mu p=87.5, \sigma p=7.542

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