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PtichkaEL
15 days ago
9

Javier read a report that said the probability that a randomly selected American is left-handed is 14 % 14%14, percent. He was c

urious how many left-handed students to expect in a class of 30 3030 students. He simulated 100 100100 classes of 30 3030 students where each student selected had a 0.14 0.140, point, 14 probability of being left-handed. Javier counted how many left-handed students were in each simulated class. Here are his results: 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9# of left-handed students Use his results to estimate the probability that there are 7 77 or more left-handed students in a class of 30 3030 students. Give your answer as either a fraction or a decimal. P ( 7 or more left-handed ) ≈ P(7 or more left-handed)≈P, left parenthesis, 7, start text, space, o, r, space, m, o, r, e, space, l, e, f, t, negative, h, a, n, d, e, d, end text, right parenthesis, approximately equals
Mathematics
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There are exactly π radians in a semicircle. There are exactly π radians in a full circle. There are approximately radians in a
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In a semicircle, there exist pi radians, whereas a full circle consists of 2pi radians. Since 2pi equals approximately 2*3.14, it results in roughly 6.28 radians in half a circle. The total of 2pi radians corresponds to 360 degrees.
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2 months ago
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A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 2780 seats. The students
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Respuesta:

Un total de 1242 estudiantes de sexto grado participaron en la excursión.

Explicación paso a paso:

A partir de los datos proporcionados, se sabe que el teatro tiene 2760 asientos y que los estudiantes ocuparon el 45% de ellos, por lo que para encontrar cuántos estudiantes de sexto grado asistieron a la excursión, hay que calcular el 45% de 2760:

2760*45%=1242

Así que, de acuerdo a esto, la respuesta es que 1242 estudiantes de sexto grado estuvieron en la excursión.

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3 months ago
ACME Manufacturing claims that its cell phone batteries last more than 32 hours on average in a certain type of cell phone. Test
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I can assert that the actual battery life exceeds the claimed 32 hours. The process undertaken involved a null hypothesis and an alternate hypothesis. We assessed the test statistic, factoring in the mean, standard deviation, and sample size. Our observations suggest a greater mean time of 37.8, with a probability assessment reflecting significant evidence to support the claim of increased battery life. The findings indicate a p-value demonstrating statistical significance, allowing us to affirm that battery life surpasses the initial claim.
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