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aniked [119]
3 years ago
10

Of the students in the college, 60% of the students reside in the hostel and 40% of the students are day scholars. Previous year

result reports that 30% of all students who stay in the hostel scored A Grade and 20% of day scholars scored A grade. At the end of the year, one student is chosen at random and found that he/she has an A grade. What is the probability that the student is a hostlier? ​
Mathematics
2 answers:
Assoli18 [71]3 years ago
8 0

Answer:

the probability that the student is a hostlier is 0.6923

Step-by-step explanation:

The computation of the probability that the student is a hostlier is shown below

= (0.60 × 0.30) ÷ (0.60 × 0.30) + (0.40 × 0.20)

= (0.18) ÷ (0.18 + 0.8)

= (0.18) ÷ (0.26)

= 0.6923

Hence the probability that the student is a hostlier is 0.6923

weeeeeb [17]3 years ago
3 0

Answer:

Step-by-step explanation:

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The sum of 5% of a number and 9 is 16
netineya [11]

Ok, so first find out what the number actually will be

16 - 9 = 7

So you need to find out the complete number. You can do that by dividing

7 / 5% = 120

So that means the sum of 5% of 120 and 9 is 16.

⭐ Please consider brainliest! ⭐

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3 0
4 years ago
In ΔOPQ, q = 110 inches, o = 970 inches and ∠P=167°. Find the area of ΔOPQ, to the nearest square inch.
ki77a [65]

Answer:

Area = 12004 square inches

Step-by-step explanation:

Given

q = 110

o = 970

\angle P =167

Required

The area of the triangle

To do this, we use:

Area = \frac{1}{2} * o * q * sin(P)

So, we have:

Area = \frac{1}{2} * 970 * 110 * sin(167^\circ)

Area = \frac{1}{2} * 970 * 110 * 0.2250

Area = 12003.75

Approximate

Area = 12004

3 0
3 years ago
Read 2 more answers
Help meeeeeee its all due toad​
solniwko [45]

Well, the answer would bee 1/10 for a simple reason: the 3 in 7.315 is in the tenth's spot while the 3 in 893.5 is in the ones. a one spot different that can be proven with logic.

4 0
3 years ago
What is the value represented by the letter c on the box plot of data? {80,18,34,80,59,67,12,55}
Alborosie

C is the median.

to find the median we need to put all the numbers given in order from smaller to largest

12, 18, 34, 55, 59, 67, 80, 80

then find the middle number of these

well we have to middle numbers 59 and 55

so we need to find the mid number between these two which 57.

The answer to this question is 57

hope this helped

5 0
3 years ago
Read 2 more answers
PLEASE HELP<br> Complete the table by computing the amount in the account at the end of each period.
skad [1K]

Answer:

See below

Step-by-step explanation:

  • Initial Principal P₀ = 1000
  • End of first period = 1000 + 1000*0.02/4 = 1005
  • End of second period = 1005 + 1000*0.02/4 = 1010
  • End of third period = 1010 + 1000*0.02/4 = 1015
  • End of fourth period = 1015 + 1000*0.02/4 = 1020

8 0
3 years ago
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