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Karo-lina-s [1.5K]
2 years ago
10

(8)=? Opposite of -3.5=? (-3.5)=? brainliest

Mathematics
2 answers:
Alina [70]2 years ago
5 0

Step-by-step explanation:

8

opposite of -3.5 =3.5

-3.5

Fittoniya [83]2 years ago
4 0

Answer:

(-8) and 3.5 and (3.5)

Step-by-step explanation:

The opposite of (8) is (-8). The opposite of -3.5 is 3.5. The opposite of (-3.5) is (3.5).

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Answer:

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Method 1: height is 15 feet below ground level

Method 2: height is -15 feet ( a negative value )

Step-by-step explanation:

Drawing a sketch helps in understanding the question:

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A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on r
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Complete Question

A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:

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Answer:

The correct option is  a and  f

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  16

     The 95% confidence interval is  (56.29, 65.09)

Generally the sample mean(average index of elementary school children) is mathematically represented as

     \= x  =  \frac{65.09 + 56.29}{2}

=>  \= x  =  60.69

 

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