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3 years ago

64% of 75 tiles show work

1 answer:

5 0

48 because,
For example
To find x percent of y you can just do 
y times x/100 
So in this case 
100 times 20/100 
which comes to 20 
so 20% of 100 is 20.

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In a certain country, the true probability of a baby being a girl is 0.469. Among the next seven randomly selected births in th

-BARSIC- [3]

Answer:

The probability is 0.995 ( approx ).

Step-by-step explanation:

Let X represents the event of baby girl,

The probability of a baby being a girl is, p = 0.469,

So, the probability of a baby who is not a girl is, q = 1 - 0.469 = 0.531,

Also, the total number of experiment, n = 7

Thus, by the binomial distribution formula,

$P(x)=^nC_x(p)^x q^{n-x}$

Where, $^nC_x=\frac{n!}{x!(n-x)!}$

The probability that all babies are girl or there is no baby boy,

$P(X=7)=^7C_7(0.469)^7(0.531)^{7-7}$

$=0.00499125661758$

Hence, the probability that at least one of them is a boy = 1 - P(X=7)

= 1 - 0.00499125661758

= 0.995008743382

≈ 0.995

8 0

3 years ago

Which graph best represents a function with a range of all real numbers greater than or equal to 3

Anna35 [415]

Answer:

Step-by-step explanation:

6 0

2 years ago

The LCD for 1 over 7 and 1 over 8 is

asambeis [7]

The least common denominator would be 56. Hope I helped you!

7 0

3 years ago

If a series of rigid transformation maps ∠F onto ∠C where ∠F is congruent to ∠C, then which of the following statements is true?

pochemuha

Answer:

BC ~ DE because of similar transformation

Step-by-step explanation:

ABC and DEF are not similar transformations the second one is wrong, the third one is wrong because. The last one ios right because by deduction it is.

6 0

3 years ago

Read 2 more answers

Please help I need to know the rule in correspondence to the pattern?

trasher [3.6K]

You can see that an odd number of steps is simply multiplying the number of steps by a number that moves up one each time. For instance, 1*1, 3*2, 5*3, etc. It's a bit harder with the even numbers. Their pattern is multiplying half the number of steps by 1.5, but the ones place value moves up a number each time, for example, 2*1.5, 4*2.5, 6*3.5. This means that 10 steps is 10 * 5.5, or 55 blocks and that 100 is 5,050 steps.

8 0

3 years ago