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pickupchik [31]
3 years ago
11

The combination for opening a safe is a four-digit number made up of different digits. How many different combinations can you m

ake, using only odd digits?
Mathematics
2 answers:
statuscvo [17]3 years ago
8 0
My bad didn't see the odds condition
Murrr4er [49]3 years ago
3 0

5\cdot4\cdot3\cdot2=120

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Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a recent year. suppose a samp
Anastaziya [24]
Given:
μ = $3.26 million, averaged salary
σ = $1.2 million, standard deviation
n = 100, sample size.

Let x = random test value
We want to determine P(x>4).

Calculate z-score.
z = (x - μ)/ (σ/√n) = (4 - 3.26)/(1.2/10) = 6.1667

From standard tables,
P(z<6.1667) = 1
The area under the distribution curve = 1.
Therefore
P(z>6.1667) = 1 - P(z<=6.1667) = 1 - 1 = 0

Answer: The probability is 0.

8 0
3 years ago
In 2013, a study found that U.S. consumers consumed soft drinks with a mean of 42.2 gallons per year and variance of 169. Ninety
melisa1 [442]

Answer:

Ninety-five percent of consumers in the U.S. consumed less than 63.59 gallons.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

The standard deviation is the square root of the variance, so \sigma = \sqrt{169} = 13

Also, the mean is 42.2, so \mu = 42.2

Ninety-five percent of consumers in the U.S. consumed less than how many gallons?

The 95th percentile, which is the value of X when Z has a pvalue of 0.95. So X when Z = 1.645

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 42.2}{13}

X - 42.2 = 13*1.645

X = 63.59

Ninety-five percent of consumers in the U.S. consumed less than 63.59 gallons.

4 0
3 years ago
Easy for 5th or any grade so plsss help #easy⭐️
Lesechka [4]

Answer:

It should be C

Step-by-step explanation:

2.85+2.85=5.7

5.7×7.7=43.89 m²

7 0
3 years ago
Read 2 more answers
A wise man once said 300 reduced by twice my age is 192 what is his age
Diano4ka-milaya [45]

Answer: The wise man is 54 years old.

Step-by-step explanation:

192 = 300 - 2a

a = wise mans age

-300

-108 = -2a

/2

54 = a

54 * 2 = 108

300 - 108 = 192

7 0
3 years ago
Express 6000 in power of 10 (indices)
MArishka [77]

Answer:

6*10^{3}

Step-by-step explanation:

Is it in standard form? If so, it is 6*10^{3} . This is because if you divide 6000 by 1000, you are left with 6. 1000 is 10^{3} so you write this number as 6*10^{3}.

Hope this helps!

8 0
2 years ago
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