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kupik [55]
2 years ago
15

Jason won 115 super bouncy ballsplaying horseshoes at the county fair. At

Mathematics
1 answer:
STatiana [176]2 years ago
7 0

Answer:

28 students

Step-by-step explanation:

Work backwards.

First, subtract 3:

115 - 3 = 112

Then, divide by 4:

112 ÷ 4 = 28

So, there are 28 math students in his class.

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The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th
Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16

The t-value can be calculated as:

t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47

4 0
3 years ago
Use the symbol &gt; to compare -3.5 and -1.5
dybincka [34]
-1.5 is the answer because it is 75
3 0
3 years ago
What is 0.5% of 30,193,864
DerKrebs [107]

Answer:

what is 0.5% of 30 = 0.15

what is 0.5% of 193 = 0.965

what is 0.5% of 864 = 4.32

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Jess wants to build the birdhouse shown. She bought a 25​-inch by 50​-inch sheet of plywood. Does Jess have enough wood to make
Lemur [1.5K]

Answer:

it depends on how big jess wants to make  her birdhouse.

8 0
3 years ago
I need help with This question
cupoosta [38]

Answer:

45% chance

Step-by-step explanation:

in the middle of 30% and 60% is 45 and that is the % chance it will rain on both days

5 0
3 years ago
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