Ask question

Ask question

All categories

2 years ago

6

How is selective boarding school will only admit students who plays at least 2 .5 standard deviation above the mean on a standar

dized test that has a mean of 100 and a standard deviation of 24. What is the minimum score that an applicant must make on the test to be accepted?

1 answer:

Maurinko [17]2 years ago

5 0

Answer:

I'd don't now

Step-by-step explanation:

ok am sorry

You might be interested in

4 of 7<br> June rolls a fair dice 234 times.<br> How many times would June expect to roll a one?

alexandr402 [8]

Answer: 39 times

Step-by-step explanation: A fair dice has 6 sides with each side having a different number between 1 and 6. Therefore, the probability of rolling a 1 is 1/6. To find out how many times June would expect to roll a 1 after rolling the dice 234 times, you must multiply 234 by 1/6 to get the answer of 39.

7 0

2 years ago

Can someone plsss help me with this one problem plsss I’m trying to get a 90 and also can you explain how you got your answer

Karo-lina-s [1.5K]

From question,
lacy learned 34 recipes in 17 weeks,
so in 1 week she learns = 34/17 =2 recipes,
hence she learns 40 recipes in
= 40*2
=80 recipes.

7 0

3 years ago

Last week, Judith's Diner sold 6 milkshakes with whipped cream on top and 69 milkshakes without whipped cream. What percentage o

jasenka [17]

Answer:

8%

Step-by-step explanation:

6/75 = 0.08 which is 8%.

8 0

2 years ago

The bacteria in an old piece of cheese is growing at a rate that can be modeled by y = 280 • 2^x. Determine which number represe

Katyanochek1 [597]

The answer is <span>C.) 2

The general form of formula is
y = a </span><span>• r^x
y - the total number of bacteria after x period of time
a - the initial number of bacteria
r - growth rate
x - period of time

Let's compare:
</span>y = a • r^x
<span>y = 280 • 2^x

Since r = 2, the growth rate is C.) 2</span>

5 0

3 years ago

Read 2 more answers

Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following p

aev [14]

Answer:

P(X < 3) = 0.7443

Step-by-step explanation:

We are given that the random variable X has a binomial distribution with the given probability of obtaining a success. Also, given n = 6, p = 0.3.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 6

r = number of success = less than 3

p = probability of success which in our question is 0.3.

LET X = a random variable

So, it means X ~ $Binom(n=6, p=0.3)$

Now, Probability that X is less than 3 = P(X < 3)

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)

= $\binom{6}{0}0.3^{0} (1-0.3)^{6-0}+ \binom{6}{1}0.3^{1} (1-0.3)^{6-1}+ \binom{6}{2}0.3^{2} (1-0.3)^{6-2}$

= $1 \times 1 \times 0.7^{6} +6 \times 0.3^{1} \times 0.7^{5} +15 \times 0.3^{2} \times 0.7^{4}$

= 0.11765 + 0.30253 + 0.32414 = 0.7443

Therefore, P(X < 3) = 0.7443.

5 0

3 years ago